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Filename Extensions

Filename Extensions


Generated 22 February 1999 from Filex database with 3240 items.


! # $ & ) 0 1 2 3 4 6 7 8 9 @ S Z _ a b c d e f g h i j k l m n o p q r s t

u v w x y z ~


.!!!Usually README file


.###Compressed volume file (DoubleSpace)

.###Temp file (QTIC)

.#24Printer data file for 24 pin matrix printer (LocoScript)

.#gfFont file (MetaFont)

.#ibPrinter data file (LocoScript)

.#scPrinter data file (LocoScript)

.#stStandard mode printer definitions (LocoScript)


.$$$Temporary file

.$$fDatabase (OS/2)

.$$pNotes (OS/2)

.$$sSpreadsheet (OS/2)

.$00Pipe file (DOS)

.$1 ZX Spectrum file in HOBETA format

.$d$Data (OS/2 Planner)

.$dbTemporary file (dBASE IV)

.$edEditor temporary file (MS C)

.$lnTLink response file (Borland C++)

.$o1Pipe file (DOS)

.$vmVirtual manager temporary file (Windows 3.x)


.&&&Temporary file


.)2(LHA archiver temporary file (LHA)


.0 Compressed harddisk data (DoubleSpace)

.000Common filename extension (GEOS)

.000Compressed harddisk data (DoubleSpace)

.001Fax (Hayes JT FAX) (many)

.07575x75 dpi display font (Ventura Publisher)

.08585x85 dpi display font (Ventura Publisher)

.09191x91 dpi display font (Ventura Publisher)

.09696x96 dpi display font (Ventura Publisher)

.0b Printer font with lineDraw extended character set (PageMaker)


.1 Unformatted manual page (Roff/nroff/troff/groff)

.10xBitmap graphics (Gemini 10x printer graphics file)

.123Data (Lotus123 97)

.12mSmartmaster file (Lotus123 97)

.15uPrinter font with PI font set (PageMaker)

.1stUsually README.1ST text


.24bBitmap graphics (24bit data)

.286Virtual device driver (Windows standard mode)

.2grVGA graphics driver (Windows Video grabber)


.301 Fax (Super FAX 2000 - Fax-Mail 96))

.386 Virtual device driver (Windows 386 enhanced mode)

.3d2 3D data (Atari Stereo CAD-3D 2.0)

.3dm QuickDraw 3D Metafile (QuickDraw)

.3dmfQuickDraw 3D Metafile (QuickDraw)

.3ds Graphics (Autodesk 3D Studio)

.3fx 3D effects (CorelChart)

.3gr VGA graphics driver (Windows Video grabber)

.3t4 Binary file converter to ascii (Util3)


.4c$Datafile (4Cast/2)

.4geCompiled source code (Informix 4GL)

.4glInformix 4GL language source code file

.4mdMusical file

.4swSwap file (4DOS)

.4thForth language source code file (ForthCMP - LMI Forth)


.668Music (the mixing is always at 12048Hz)

.669Music (8 channels MOD) (669 Composer)

.6cmMusic (6 Channel Module) (Triton FastTracker)


.75 75x75 dpi display font (Ventura Publisher)

.777Compressed file archiver (777)


.8 Assembly language source code file (A86)

.85 85x85 dpi display font (Ventura Publisher)

.8cm Music (8 Channel Module) (Triton FastTracker)

.8m Math 8 extended character set printer font (PageMaker)

.8medMusic (Amiga OctaMed)

.8svxSound (Amiga 8-bit)

.8u Roman 8 extended character set printer font (PageMaker)


.9191x91 dpi display font (Ventura Publisher)

.9696x96 dpi display font (Ventura Publisher)


.@@@Screen files used in installation or instructions


.SAssembly language source code file.S for cpp (Unix)


.ZCompressed file archive.Z (ascii) (compress)


.___Table (Adinf)


.a Ada language source code file

.a Assembly source code (Macintosh)

.a Object library (unix)

.a11 Graphics (AIIM)

.a8 Alpha channel image data (24bit 3D animation) (Cubicomp


.a86 Assembly language source code file (A86)

.ab6 Datafile (ABStat)

.ab8 Datafile (ABStat)

.abc Document (ABC FlowCharter 1.0)

.abc General filename extension (ABC programming language)

.abc Musical notation language file (folk melodies)

.abf Adobe Binary Screen Font (Adobe Software)

.abk Automatic backup (CorelDraw)

.abk Avigo Backup (Avigo)

.abm Album (Image PALS, PhotoPlus)

.abr Adobe Brush file (Adobe PhotoShop)

.abs Abstracts (info file)

.abs Data file (Abscissa)

.ac$ Spooled plot file (AutoCAD AutoSpool)

.aca Project (Project Manager Workbench)

.acad AutoCAD database file

.acb Compressed file archive (ACB)

.acb Graphics (ACMB)

.acc Program (DR-DOS - ViewMax) (GEM / resident)

.ace Compressed file archive (ACE, WinACE)

.acf Adobe Custom Filter (Adobe PhotoShop)

.acgi ACGI Script (WWW)

.acl Keyboard accelerator (Corel Draw 6)

.acm Audio Compression Module add-on (Windows)

.acm Graphics file (ACMB format)

.acmb Graphics file (ACMB format)

.aco Adobe Color Palette

.acp Assistant preview file (Ms Office)

.acp Compressed file archive (ACB)

.acr Bitmap graphics (ACR-NEMA medical image file)

.act Actor source code file (Graphics cell) (Animation Works)

.act Assistant actor (MS Office)

.act Color table (Adobe Photoshop)

.act Foxdoc Action Diagrams (FoxPro)

.act Presentation (Action!)

.acv Compress and decompress audio data (OS/2 driver)

.ad Screensaver (AfterDark)

.ad2 ADPCM 2-bit compressed voice file (ZFAX)

.ad3 ADPCM 3-bit compressed voice file (ZFAX)

.ada Ada language source code file

.adb Ada Package Body

.adb Appointment database (HP 100LX organizer)

.adc Bitmap graphics (16 colors) (ScanStudio)

.adc Dictionary (Lingvo)

.adc Sound (TI/MIT ADC format)

.add Adapter Device Driver (OS/2)

.adex Bitmap graphics (ADEX Corp. image file)

.adf Administration configuration file

.adf Amiga Disk File

.adi Graphics (AutoCAD Device-Independent binary plotter image)

.adl Mca adapter description library (QEMM)

.adm MultiModule screensaver (AfterDark)

.adn Add-in (Lotus 1-2-3)

.adp Dynamite file (Astound)

.adp Setup file for fax modem interaction (FaxWorks)

.adpcmSound (Intel/DVI Adaptive Differential Pulse Code Modulation


.adr Randomizer screensaver (AfterDark)

.ads Ada Package Specification

.adt Datafile for cardfile application (HP NewWave)

.adt Dictionary (Lingvo)

.adt Fax (AdTech)

.adv GUS device driver (Gf166.com)

.adx Document (Archetype Designer)

.adx Index (Approach)

.aex Alpha linked executable file

.aex Armored extracted public key (PGP)

.aexpkArmored extracted public key (PGP)

.af2 Flowchart (ABC FlowCharter 2.0)

.af3 Flowchart (ABC FlowCharter 3.0)

.afc Apple sound

.afi Bitmap graphics (Truevision)

.afl Font file (for Allways) (Lotus 1-2-3)

.afl RubberFlex animation (AnimaFlex)

.afm Adobe Font Metrics (Type 1 font metrics for font installers)

.afm Datafile for cardfile application (HP NewWave)

.afp Shape palette (ABC FlowCharter)

.aft Template (ABC FlowCharter 3.0)

.afw Workspace (ABC FlowCharter 3.0)

.agn Agenda (Psion Series 3)

.ai Vector graphics (Adobe Illustrator)

.aif AIFF sound (Apple Audio Interchange Format File)

.aif Application information file (EPOC)

.aif Setup information (ADW Knowledge Ware)

.aifc AIFF-C sound (Apple Audio Interchange Format File with Compression)

.aiff AIFF sound (Apple Audio Interchange Format File)

.aim AOL Instant Message Launch (Netscape)

.aim Asm Text Mode Image File (The Ultimate Draw)

.ain Compressed file archive (Ain)

.aio APL file transfer format file

.air Automatic image registration

.ais Graphics (Array of Intensity Samples) (Xerox)

.ais Image sequence file (ACDSee)

.aix Datafile for cardfile application (HP NewWave)

.al Sound (ALAW format)

.alb Graphics album (JASC Image Commander)

.alg Activity Log (ARCSOLO)

.aliasBitmap graphics (24bit RGB RLE) (Alias image file)

.all Arts & Letters Library (Symbol and font files)

.all Filelist of all files (FRQView)

.all Format file for working pages (Always)

.all General printer information (WordPerfect for Win)

.alo Almanac support file

.alphaBitmap graphics (raw alpha bytes)

.als Bitmap graphics (24bit RLE) (Alias - Vivid RayTracer)

.alt Menu file (WordPerfect Library)

.amf Music (Advanced Module Format)

.amg Compressed file archive (AMGC)

.amg System image file (Actor)

.ams Adobe Monitor Setup calibration file (Adobe PhotoShop)

.ams Music (Velvert Studio MOD)

.anc List of pattern colors (Canon Computer Pattern Maker)

.ani Animated cursor (Windows 95/NT)

.ani Animation (Presidio - many)

.anm Animation (Deluxe Paint Animator)

.ann Help annotations (Windows 3.x)

.ans Animation (graphics or text)

.ans Ascii text with ANSI character set (NewWave Write)

.ant Game data (SimAnt)

.aol America On-Line related file

.aos Installable program (Nokia Communicator add-on software)

.ap Compressed Amiga file archive (Whap)

.ap Datafile (Datalex EntryPoint 90)

.apc Printer driver characters (Lotus 1-2-3)

.apd Aldus Printer Description (Aldus PageMaker)

.apd Printer driver (Lotus 1-2-3)

.apf Printer driver fonts (Lotus 1-2-3)

.api Adobe Printer Ink file (Adobe PhotoShop)

.api Application Program Interface file (Adobe Acrobat)

.api Passed parameter file (1st Reader)

.api Printer driver (Lotus 1-2-3)

.apl APL work space

.apl Support module (Manugraphics APL products)

.app Add-in application file (Symphony)

.app Application object file (dBASE Application Generator)

.app Executable application file (DR-DOS - NeXTstep - Atari - EPOC)

.app Generated application (FoxPro)

.apr Data (Lotus Approach 97)

.apr Employee performance review (Employee Appraiser)

.apx AppExpert database file (Borland C++ 4.5)

.arc Compressed file archive (ARC - PKARC - QUARK - SQUASH)

.arf Automatic Response File

.arh Archivers definitions file (DN)

.ari Audio (Aristotle)

.ari Compressed file archive (ARI)

.arj Compressed file archive (Robert Jung's ARJ)

.ark ARC archive (CP/M port of ARC file archiver)

.ark Archive (Managing your Money)

.ark Compressed file archive (QUARK)

.arr Arrangement (Atari Cubase)

.arr Bitmap graphics (Amber ARR image)

.art Bitmap graphics (B&W) (many - First Publisher - Xara Studio)

.art Graphics (Another Ray Tracer - Vort)

.arx Compressed file archive (ARX)

.asc Armored encrypted file (Pretty Good Privacy)

.asc Ascii text

.asc Bitmap graphics B&W ASCII (GROB Graphic Object) (HP-48sx


.asd Autosave file (Word for Windows)

.asd Presentation (Astound)

.asd Screen driver (Lotus 1-2-3)

.asf Datafile (STATGRAPHICS)

.asf Screen font (Lotus 1-2-3)

.asf Video (Advanced Streaming Format) (WWW)

.ash Assembly language header file (TASM 3.0)

.asi Assembler include file (Turbo C - Borland C++)

.asic ASIC language source code file (ASIC)

.asm Assembly language source code file

.aso Assembler object (object orientated) file (Turbo Assembler)

.aso Astound Dynamite Objects

.asp Active Server Page (HTML file with Microsoft IIS script)

.asp Aspect language script file (Procomm Plus)

.asp Association of Shareware Professionals note

.ast Adobe Color Separtion table (Adobe PhotoShop)

.ast Assistant file (Claris Works)

.ast Astound multimedia file

.asx Cheyenne Backup script

.asx Video (Advanced Streaming Format) (WWW)

.at2 Auto template (Aldus Persuasion 2.0)

.atk Bitmap graphics (Andrew Toolkit Raster Object file)

.atm Adobe Type Manager related file

.att Bitmap graphics (AT&T Group 4)

.au Sound - basic 8bit ulaw compressed audio file (Sun Audio File


.aut Automation (IPIX)

.aux Auxiliary dictionary (ChiWriter)

.aux Auxillary references (TeX/LaTeX)

.ava Publication (Avagio)

.avb AntiViral Toolkit Pro Bases

.avi Audio Video Interleaved (movie) (Video for Windows)

.avr Sound (Audio Visual Research file format)

.avs Application Visualization System (animation)

.avs Bitmap graphics (AVS X image file)

.avt Avatar-coding files (A3E)

.aw Text document (HP AdvanceWrite)

.awa Animation Works Accelerated movie (Animation Works)

.awd Document (FaxView - Microsoft Fax At Work)

.awk AWK language source code file

.awm Animations Works Movie (Animation Works)


.awx Custom application wizard

.ax Linker information for libraries (Modula-3)


.b BASIC language source code file

.b Base program (Modula-3)

.b Batch list (APPLAUSE)

.b&w Bitmap graphics (Mono binary screen image) (1st Reader)

.b&w Bitmap graphics (black and white) (atari - mac)

.b1n Bitmap graphics (both mono and color binary screen image) (1st


.b30 Printer font (JLaser - Cordata) (Ventura Publisher)

.b4 Nuts and Bolts file (Helix)

.b64 Encoded file archive (ascii) (base64 MIME)

.b8 Bitmap graphics (one byte per pixel) plane two (PicLab)

.b8 Red channel image data (24bit 3D animation) (Cubicomp


.b_w Bitmap graphics (black and white) (atari - mac)

.bac Backup

.bad Bad file (Oracle)

.bak Backup

.bal Music score (Ballade)

.bar Compressed file archive (Unix BAR archive)

.bar Horizontal bar menu object file (dBASE Application Generator)

.bas BASIC language source code file (QuickBASIC - GW-BASIC)

.bat Batch file (DOS)

.bb Database backup (Papyrus)

.bbl Bibliographic reference (TeX/BibTeX)

.bbm Brush (Deluxe Paint)

.bbnng Bitmap graphics (BBN BitGraph terminal Display Pixel Data (DPD)


.bbp Bezier surface file

.bbs Bulletin Board System announce or text info

.bbs Hudson-style messagebase (FTN software)

.bch Batch process object file (dBASE Application Generator)

.bch Datafile (Datalex EntryPoint 90)

.bck Backup (VMS/VAX)

.bcm Comms script backup (MS Works)

.bco Outline font description (Bitstream)

.bcp Makefile (Borland C++)

.bcs Browse information (Windows95)

.bct Backup dictionary (Clarion)

.bcw Workspace (Environment settings) (Borland C++ 4.5)

.bdb Database backup (MS Works)

.bdc Dictionary (Lingvo)

.bdf Binary update file (BUpdate)

.bdf Bitmap Distribution Format file (font - glyph) (Adobe - X11)

.bdf Datafile (Egret)

.bdr Border (MS Publisher)

.bdt Dictionary (Lingvo)

.bex Binary extracted public key (PGP)

.bexpk Binary extracted public key (PGP)

.bez Bezier surface file

.bez Outline font description (Bitstream)

.bf2 Bradford 2 font

.bfc Briefcase (Windows 95)

.bfm Font metrics (unix/Frame)

.bfx Fax (BitFax)

.bg Game (Backgammon for Windows)

.bga Bitmap graphics (OS/2)

.bgi Device driver (Borland Graphics Interface)

.bhx Compressed file ascii archive (BinHex)

.bi BASIC source code include file (Visual Basic)

.bib Bibliography (ascii)

.bib Database - not compatible with TeX format (Papyrus)

.bib Literature database (TeX/BibTeX)

.bif Binary Information File (ASCII file describing image)

.bif Bitmap graphics (b&w Binary Image Format) (Image Capture board)

.bif Initialization file (GroupWise)

.biff XLITE 3D file

.big Chinese text (old version)

.big5 Chinese text (old version)

.bil Satellite image (8bit GIS tape format) (SPOT image)

.bin Binary file

.bin SGI Powerflip

.bio BIOS (OS/2)

.bit Bitmap graphics (X11)

.bix Compressed file archive (BIX)

.bk Faxbook (JetFax)

.bk! Document backup (WordPerfect for Win)

.bk1 Timed backup file for document window 1 (WordPerfect for Win)

.bk2 Timed backup file for document window 2 (WordPerfect for Win)

.bk3 Timed backup file for document window 3 (WordPerfect for Win)

.bk4 Timed backup file for document window 4 (WordPerfect for Win)

.bk5 Timed backup file for document window 5 (WordPerfect for Win)

.bk6 Timed backup file for document window 6 (WordPerfect for Win)

.bk7 Timed backup file for document window 7 (WordPerfect for Win)

.bk8 Timed backup file for document window 8 (WordPerfect for Win)

.bk9 Timed backup file for document window 9 (WordPerfect for Win)

.bki Backup index (IBM BookManager)

.bkp Backup file (Write - TurboVidion DialogDesigner)

.bks Bookself (IBM BookManager)

.bks Worksheet backup (MS Works)

.bkw Mirror image of font set (FontEdit)

.bld Bloadable picture (BASIC)

.blg Backup Log (ARCSOLO)

.blg BibTex log

.blk Temporary file (WordPerfect for Win)

.bm Bitmap graphics (1bit text) (X Window BitMap)

.bm1 Game data (Apogee BioMenace)

.bmf Graphics (Binary Material Format) (Corel)

.bmk Bookmark file (Windows)

.bmp Bitmap graphics (PC Paintbrush - many)

.bmt Ami Pro Button (Ami Pro)

.bnk Adlib instrument bank file

.bnr Graphics Banner (Banner - Poster)

.bob Bitmap graphics (BOB Image file)

.boo Book (IBM BookManager)

.boo Bootstrap (Kermit protocol binary file)

.boo Encoded file archive (ascii) (Boo)

.book Book (Adobe FrameMaker)

.boz Compressed file archive (bzip over zip)

.bpc Chart (Business Plan Toolkit)

.bpp Backup application (Clarion)

.bps Text document backup (MS Works)

.bpt Bitmap master file (CorelDraw)

.br Data (Omnis7)

.br Script (Bridge)

.brd Eagle Layout File

.brk Fax (Brooktrout Fax-Mail)

.brk Mailer REXX script (The Brake!)

.brl-cadBallistic Research Laboratory CAD

.brush Bitmap graphics (Xerox Doodle Brush file)

.brx A file for browsing an index of multimedia options

.bs1 Game data (Apogee Blake Stone)

.bs2 Archive (BS2)

.bsa Compressed file archive (BSArc)

.bsc Browser information (MS Developer Studio)

.bsc Compressed Apple II file archive (BINSCII)

.bsc Database (Source Browser)

.bsc Pwbrmake object file (MS Fortran)

.bsp Map (Quake)

.bst BiblioTex Style (BibTeX)

.bsy Busy flag (FTN soft)

.btl Inmos bootable file

.btm Batch file (Batch To Memory) (4DOS - NDOS)

.btn Button file (Makeover)

.bub Photobubble (IPIX)

.bufr Binary Universal Form for the Representation

.bufr Meteorological Data

.bug Bugs and Problems

.bun Bundle file (CakeWalk Audio)

.bup Backup

.but Button definitions (Buttons!)

.bv1 Overflow file below insert point in Doc 1 (WordPerfect for Win)

.bv2 Overflow file below insert point in Doc 2 (WordPerfect for Win)

.bv3 Overflow file below insert point in Doc 3 (WordPerfect for Win)

.bv4 Overflow file below insert point in Doc 4 (WordPerfect for Win)

.bv5 Overflow file below insert point in Doc 5 (WordPerfect for Win)

.bv6 Overflow file below insert point in Doc 6 (WordPerfect for Win)

.bv7 Overflow file below insert point in Doc 7 (WordPerfect for Win)

.bv8 Overflow file below insert point in Doc 8 (WordPerfect for Win)

.bv9 Overflow file below insert point in Doc 9 (WordPerfect for Win)

.bw Bitmap graphics (SGI image)

.bwb Spreadsheet application (Visual Baler)

.bwr Beware (buglist) (Kermit)

.byu Bitmap graphics (Movie BYU format)

.bz Compressed file archive (bzip)

.bz2 Compressed file archive (bzip2)


.c C language source code file

.c Compressed unix file archive (compact)

.c++ C++ language source code file

.c-- C-- language source code file (Sphinx C--)

.c00 Print file (Ventura Publisher)

.c4 Bitmap graphics (1bit) (JEDMICS CCITT4 format)

.c64 Bitmap graphics (Commodore 64 image file)

.c86 C language source code file (Computer Innovation C86)

.ca Initial cache data for root domain servers (Telnet)

.ca0 Packed and splitted file (Borland Installer)

.ca7 Job file (Beta 44)

.cab Compressed Cabinet file (Microsoft)

.cac dBASE IV executable when caching on/off (see cachedb.bat)

.cad Document (Drafix Windows CAD)

.cal Bitmap graphics B&W (Computer-aided Acquisition and Logistics


.cal Calendar file (Windows 3.x)

.cal Spreadsheet (SuperCalc)

.cals Bitmap graphics (Computer Aided Acquisition and Logistics Support)

.cam Graphics (Casio QV Digital Camera)

.can Fax (Navigator Fax)

.cap Caption (Ventura Publisher)

.cap Compressed music file

.cap Session capture file (ProComm - Telix)

.cas C + ASM language source (Turbo C)

.cat Catalog (CP Backup - dBASE IV)

.cat IntelliCharge categorization file (Quicken)

.cat Logical package (Rational Rose)

.cb Microsoft clean boot file

.cbc Fuzzy logic system (CubiCalc)

.cbl Cobol language source code file

.cbm Compiled bitmap graphics (XLib)

.cbs Button bar configuration file (MasterWord)

.cbt Computer Based Training (many)

.cc C++ language source code file (gcc)

.cc CC language source code file (cc)

.cca Data (cc:Mail)

.ccad Data (ClarisCAD)

.ccb Animated Button configuration (Visual Basic)

.ccc Bitmap graphics (native format) (Curtain Call)

.ccf Communications configuration file (Symphony)

.ccf Configuration file (OS/2 Multimedia Viewer)

.cch Chart (CorelChart)

.cci CCITT Group 3 and Group 4 Encoding

.ccitt CCITT Group 3 and Group 4 Encoding

.ccl Communication Command Language file (Intalk)

.ccm Mailbox (Lotus CC:Mail)

.cco Btx Graphics file (XBTX)

.cco Data (CyberChat)

.ccrf Bitmap graphics (Calcomp Raster File) (B&W or 1bit CMYK for


.cct Shockwave cast (Macromedia Director)

.cd CD description (DN)

.cda CD audio track

.cdb Card database (CardScan)

.cdb Main database (Turbo C Utilities)

.cdf Channel Definition Format (Microsoft)

.cdf Common Data Format (multi-dimensional data sets)

.cdf Cyberspace Description Format

.cdf Graphics (Unidata netCDF)

.cdi Compact Disk Interactive (Phillips CD-I IFF file)

.cdk Document (Atari Calamus)

.cdl CAD language file (CADKey)

.cdm Disk Drivers NPA (Novell NetWare)

.cdm Music format (compressed)

.cdr Vector graphics (CorelDraw format)

.cdt Template (CorelDraw)

.cdx Compound index (FoxPro)

.cdx Compressed drawing (Corel Draw)

.ce Computer Eyes (Digital Vision IFF bitmap)

.cef Workbench application (CA Clipper)

.ceg Bitmap graphics (Tempra Show - Edsun Continuous Edge Graphics)

.cel Animation (Autodesk Animator - 3D Studio)

.cel Bitmap graphics (15/32bit) (Lumena CEL file) (Time Arts software)

.cel CIMFast Event Language file

.cer Compilation error messages (Lahey Fortran)

.cer Security certificate

.cf Configuration (imake)

.cfb Comptons Multimedia file

.cfb Inmos binary configuration file

.cfg Configuration

.cfl Chart (CorelFLOW)

.cfm Template (Cold Fusion)

.cfn Font data (Atari Calamus)

.cfo C Form Object file (Turbo C Utilities)

.cfp Fax (The Complete Fax Portable)

.cfr CFR Guidance (NRC Inspection Manual)

.cfs Inmos configuration file

.cft CFast graphics file (Disney Animation Studio)

.cga CGA display font (Ventura Publisher)

.cgi Common Gateway Interface script (WWW)

.cgl Error log (CodeGuard)

.cgm Vector graphics (Computer Graphics Metafile format)

.ch Configuration file (OS/2)

.ch Header file (CA Clipper)

.ch3 Chart (Harvard Graphics 3.0)

.ch4 Presentation (Charisma 4.0)

.cha Chat (IRC data)

.chat Chat (IRC data)

.chd Font descriptor (FontChameleon)

.chi Document (ChiWriter)

.chk Recovered data (ChkDsk, ScanDisk)

.chk Temporary file (WordPerfect for Win)

.chl Configuration History Log

.chm Compiled HTML file

.chn Data (Ethnograph 3)

.chp Chapter file (Ventura Publisher)

.chr Character set (Turbo C - Turbo Pascal)

.cht Chart (Harvard Graphics 2.0 - SoftCraft Presenter)

.cht Interface file for ChartMaster (dBASE)

.chz Compressed file archive (CHARC)

.cif CD Image File (Easy CD Creator)

.cif Chapter information (Ventura Publisher)

.cif Graphics (Caltech Intermediate Format)

.cif IUCr Crystallographic Information File

.cil Clip gallery download package (Art Gallery)

.cim C Text Mode Image File (The Ultimate Draw)

.cim Game data (SimCity 2000)

.cin INI file change control file (OS/2)

.cix Database index (Turbo C Utilities)

.ck1 Game data (iD/Apogee Commander Keen 1)

.ck2 Game data (iD/Apogee Commander Keen 2)

.ck3 Game data (iD/Apogee Commander Keen 3)

.ck4 Game data (iD/Apogee Commander Keen 4)

.ck5 Game data (iD/Apogee Commander Keen 5)

.ck6 Game data (iD/Apogee Commander Keen 6)

.ckb Keyboard mapping (Borland C++ 4.x)

.cl Common LISP language source code file

.cla Source (Clarion)

.class Java bytecode (compiled class - application)

.clb Clipbook template (Super NoteTab)

.cld Clipper debugger configuration file (CA Clipper)

.clp Bitmap graphics (Clip art) (PCPaint - Pictor - Quattro Pro)

.clp Clipboard file (Windows 3.x)

.clp Compiler responce file (CA Clipper)

.clr Color binary screen image (1st Reader)

.clr Color definitions (Photostyler)

.clr Color scheme (Boxer/2)

.cls Class definition file (C++, Visual Basic)

.cls Class module (Visual Basic)

.clw MFC Class Wizard information (MS VC++)

.cm Bitmap graphics (8bit) (Unix Puzzle)

.cm Data (CraftMan)

.cmb Xtree for Windows Button Bar file

.cmd Batch file (REXX) (OS/2)

.cmd Command file (dBASE - Waffle)

.cmd External command menu (1st Reader)

.cmf Corel Metafile

.cmf FM-music file (Creative Music File)

.cmk Card (Card Shop Plus)

.cml CML document (Chemical Markup Language)

.cmm Cmm script (CEnvi)

.cmp Bitmap graphics (Lead CMP compression)

.cmp Calibration map (Photofinish)

.cmp Compressed data (PKWare compression library)

.cmp Data (CraftMan)

.cmp Header file for PostScript printer files (CorelDraw)

.cmp User dictionary (MS Word for DOS)

.cmrt Data (CraftMan)

.cmu Bitmap graphics (Carnegie Mellon University (CMU) Window Manager

bitmap Formats)

.cmuwm Bitmap graphics (Carnegie Mellon University (CMU) Window Manager

bitmap Formats)

.cmv Animation (CorelMove - CorelDraw 4.0)

.cmx Vector graphics (CorelDraw)

.cmyk Bitmap graphics (raw cyan magenta yellow and black bytes)

.cnc CNC general program data

.cnf Configuration (program - printer setup)

.cnm Windows application menu options and setup file

.cnq Shop file (Compuworks Design)

.cnt Contents tab file (Rational Rose 98)

.cnv Data conversion support file (Word for Windows)

.cnv Temporary file (WordPerfect for Win)

.cob Cobol language source code file

.cob Graphics (Calgari trueSpace2 File Format)

.cod Code definition table (UUPC)

.cod Datafile (Forecast Plus - MS Multiplan - StatPac Gold)

.cod Printer code definition file (Boxer/2)

.cod Program compiled code (FORTRAN)

.cod Source code in assembler with original C code as comments (MS C)

.cod Template source file (dBASE Application Generator)

.cod Videotext file

.col Color palette (Autodesk Animator - many)

.col Spreadsheet (MS Multiplan)

.com Command (memory image of executable program) (DOS)

.con Configuration file (Simdir)

.conf Configuration information (Unix)

.coo Cookie file

.core Bitmap graphics (Core Software Tech CORE IDC file)

.cpc Compressed image (Cartesian Perceptual Compression)

.cpd Fax Cover document

.cpd Script (Complaints Desk)

.cpe Fax Cover document

.cpf Fax (The Complete Fax)

.cpi Bitmap graphics (Colorlab Processed Image)

.cpi Code Page Information file (DOS)

.cpj CeQuadrat CD ProJect file

.cpl Colour palette (Corel)

.cpl Control panel extension (Windows)

.cpl Presentation (Compel)

.cpp C++ language source code file

.cpp Presentation (CA-Cricket Presents)

.cpr Presentation (Corel Presents)

.cps Backup of startup files (QEMM)

.cps Color PostScript

.cpt Bitmap graphics (Corel Photo-Paint)

.cpt Compressed Macintosh file archive (Compact Pro)

.cpt Encrypted memo file (dBASE)

.cpt Template (CA-Cricket Presents)

.cpx Compressed drawing (Corel Presentation Exchange)

.cpz Music text file (COMPOZ)

.cra Advanced crack file (usually text)

.crd Cardfile (Windows 3.x - YourWay)

.crf Bitmap graphics (Calcomp Raster File) (B&W or 1bit CMYK for


.crf Cross-reference (MASM - Zortech C++)

.crk Crack file (usually text)

.crp Encrypted database (dBASE IV)

.crp Run-time presentation (Corel Presents)

.crs File Conversion Resource (WordPerfect 5.1)

.crt Internet security certificate

.crt Terminal settings information (Oracle)

.cru Compressed file archive (CRUSH)

.csc Corel Script

.csg Graph (Statistica/w)

.cslm Bitmap graphics (Zeiss CSLM file)

.csm Precompiled headers (Borland C++ 4.5)

.csp Screen Image (PC Emcee)

.css Cascading Style Sheet (WWW)

.css Datafile (CSS - Stats+ - Statistica)

.csv Adjusted EGA/VGA palette (CompuShow)

.csv Data file (Comma Separated Values format)

.csy Polymorphic DLL (EPOC)

.ct Bitmap graphics (32bit CMYK) (Scitex CT Bitmap) (Scitex scanners)

.ct Bitmap graphics (32bit) (Iris CT format) (Iris printers)

.ctc Control file (PC Installer)

.ctf Character code translation file (Symphony)

.ctl Control file (dBASE IV - Aldus Setup)

.cts Permanent location contents (ABC programming language)

.ctx Ciphertext file (PGP)

.ctx Course TeXt file (Microsoft online guides)

.cube Bitmap graphics (Cubicomp/Vertigo image file) (Cubicomp


.cubi Bitmap graphics (Cubicomp/Vertigo image file) (Cubicomp


.cue Microsoft Cue Cards data

.cuf C Utilities Form definition (Turbo C Utilities)

.cur Cursor image resource (Resource Workshop - Watcom Resource Editor)

.cursorCursor (Sun Cursor file)

.cut Bitmap graphics (Media Cybernetic's Dr.Halo graphics format)

.cv Archive (Corel Versions)

.cv Information screen (Microsoft CodeView)

.cv4 Color file (CodeView)

.cvf Compressed volume (SuperStor)

.cvp Cover page (WinFax)

.cvs Bitmap graphics (Canvas drawing)

.cvt Backup file for CONVERTed database file (dBASE IV)

.cvw Color file (CodeView)

.cweb C Web

.cwk Document (ClarisWorks)

.cwl Library (ClarisWOrks)

.cws Stationery (ClarisWorks)

.cx Script (CodeMapper)

.cxx C++ language source code file (Zortech C++, gcc)


.d63 Commodore 64 emulator disk file

.dac Sound (TI/MIT DAC format) (byte reversed ADC file)

.dat Data file (ASCII or binary - many)

.dat Merge data (WordPerfect)

.db Configuration (dBASE IV - dBFast - MultiEdit)

.db Database (dbVista - Paradox - Smartware - XTreeGold)

.db$ Temporary file (dBASE - Modula2)

.db2 Database (dBASE II)

.db3 Database (dBASE III)

.dba Database (Turbo Prolog - DataEase)

.dbd Business data (Business Insight)

.dbd Debug info (Clarion Modula-2)

.dbf Database file (dBASE III/IV - FoxPro - dBFast - DataBoss)

.dbg Debugger script (DOS debug - Watcom debuger)

.dbg Symbolic debugging information (MS C/C++)

.dbk Database backup (dBASE IV)

.dbm Datafile (DataEase)

.dbm Menu template (DataBoss)

.dbo Compiled program (dBASE IV)

.dbs Datafile (Managing Your Money - ProDas - SQL Windows)

.dbs Printer description file (MS Word - Works)

.dbt Database text (Clipper)

.dbt Foxbase+ style memo (FoxPro)

.dbt Memo file for database w/same name (dBASE IV - dBFast)

.dbw Windows file (DataBoss)

.dbx Graphics (DataBeam image)

.dca Document Content Architecture text file (IBM DisplayWrite)

.dcf Disk image file

.dcl Delphi Component Library (Borland Delphi)

.dcp Data CodePage (OS/2)

.dcp Device code page (OS/2)

.dcr Data (Shockwave - Macromedia Director)

.dcs Bitmap graphics (Quark Desktop Color Separation EPS file)


.dcs Datafile (ACT! Activity Files)

.dcs Desktop Color Separation file

.dct Database dictionary (Clarion Database Developer)

.dct Spell checking dictionary (Clarion - Harvard Graphics 3.0 -


.dcu Delphi unit (compiled) (Borland Delphi)

.dcx Bitmap graphics (Multipage PCX - many faxes)

.dd Compressed Macintosh file archive (DiskDoubler)

.ddb Bitmap graphics

.dde Dynamic Data Exchange (binary)

.ddf Database (BTRIEVE)

.ddi Disk image (DiskDupe)

.ddifBitmap graphics (DEC DDIF file)

.ddp Device Driver Profile file (OS/2)

.deb Debug script (DOS Debug)

.dec Decoded file

.def Assembly header file (Geoworks Esp)

.def Data (SmartWare II)

.def Defaults - definitions

.def Linker definition file (TLink - WLink...)

.dem Demo

.dem Digital Elevation Model

.dem Graphics (VistaPro)

.der Internet security certificate

.des Description


.dev Device driver

.df Bitmap graphics (Hierarchical Data File) (NCSA)

.dfd Data Flow Diagram graphic (Prosa)

.dfd Dyadic functions (ABC programming language)

.dfi Outline font description (Digifont)

.dfl Default program settings (Signature)

.dfm Data Flow Diagram model file (Prosa)

.dfm Form file (Borland Delphi - C++ Builder)

.dfs Delight Sound File

.dfv Printing form (MS Word)

.dfx Micrografx Effects DLL

.dgn CAD drawing (vector) (MicroStation)

.dgs Diagnostics

.dh Dependency information for .ph (Geoworks)

.dhp Bitmap graphics (Dr. Halo PIC)

.dht Datafile (Gauss)

.dia Diagraph graphics (Computer Support Corporation)

.dib Bitmap graphics (Device Independent Bitmap)

.dic Dictionary

.dif Database (Data Interchange Format) (Visicalc)

.dif Difference data file (Patch script)

.dif Display Information File (OS/2)

.diffDifference data file (Patch script)

.dip Debug info processor (Watcom Debugger)

.dir Dialing directory file (Procomm Plus)

.dir Directory file (VAX - CPS Backup)

.dir Movie format (MacroMind Director 4.x)

.dis Distribution list (VAX Mail)

.dis Thesaurus (CorelDraw)

.diz Description file (Description In Zip)

.dkb Raytraced graphics (DKBTrace)

.dl Animation (Display - DL Viewer)

.dld Data (Lotus 1-2-3)

.dlg Dialog resource script file (MS Windows SDK)

.dlg Dialog resources (DN)

.dlg Digital Line Graph

.dll Dynamic Link Library (Windows 3.x - OS/2)

.dlm Data (FileMaker Pro)

.dls Setup (Norton Disklock)

.dmf Music format (Delusion Digital Music File) (Delusion)

.dmo Demo (Derive)

.dmp Dump file (eg. screen or memory)

.dms Compressed Amiga file archive (DiskMasher)

.doc Text document (binary file)

.dog Screen file (Laughing Dog Screen Maker)

.doh Dependency information for .poh (Geoworks)

.dos DOS related file (Win95)

.dos External command file (1st Reader)

.dot Document template (MS Word)

.dot Line-type definition file (CorelDraw)

.dox Text document (MultiMate 4.0 - MS Word)

.doz Description Out of Zip (VENDINFO)

.dp Calendar file (Daily Planner)

.dp Data file (DataPhile)

.dp Primary data file (THOR database)

.dpd Dyadic predicates (ABC programming language)

.dpj Project (Borland Delphi)

.dpr Default project- and state-related information (Borland C++ -


.dpx Bitmap graphics (Digital Moving Picture Exchange) (Cineon DPX file)

.drs Display Resource (WordPerfect for Win)

.drv Device driver (for hardware)

.drw Vector graphics (Micrografx Designer format)

.ds4 Vector graphics (Micrografx Designer 4.x)

.dsc Description file

.dsc Discard file (Oracle)

.dsd Database (DataShaper)

.dsf Delusion Digital Sound File (Delusion)

.dsk Disk Drivers (Novell NetWare)

.dsk Project desktop (Borland C++)

.dsm Digital sound module (DSI)

.dsm Macro (MS Developer Studio)

.dsn Design (Object System Designer)

.dsn ODBC data source

.dsp Display parameters (Signature)

.dsp Dynamic Studio Professional Module (Dynamic Studio)

.dsp Graphics display driver (Dr.Halo)

.dsp Project (MS Developer Studio)

.dsq Query file (Corel)

.dsr Driver Resource (WordPerfect for Win)

.dss Screensaver file (DCC)

.dss Sound (Digital Soup)

.dst WAIN (Scanner spec) data source DLL (Win)

.dsw Project workspace (Borland C++ - MS Developer Studio)

.dt_ Data fork of a Macintosh file (Mac-ette)

.dta Data file (Turbo Pascal - PC-File - Stata)

.dtd Document Type Definition

.dtf Database file (PFS - Q&A)

.dtp Publication (PageMagic - Publish-It! - Publisher3)

.dvc Data (Lotus 1-2-3)

.dvi Text document (TeX Device Independent File Format) (TeX)

.dvp Device parameter file (AutoCAD)

.dvp Program information file (DESQview)

.dw2 Drawing (DesignCAD for windows)

.dwb Workbench (Coryphaeus Software Designer)

.dwc Compressed file archive (DWC)

.dwd DiamondWare digitized sound

.dwf Vector graphics (CAD programs)

.dwg Drawing database (vector) (AutoCAD - Drafix) (CAD programs)

.dx Cross-reference data (THOR database)

.dx Document (Data explorer)

.dx Text file (DEC WPS/DX format - DEC WPS Plus)

.dxb Drawing binary exchange format (vector) (AutoCAD)

.dxf Vector graphics (Drawing Exchange Format) (AutoCAD) (CAD programs)

.dxn Fax (Fujitsu dexNET)

.dy22Sound (Dyaxis format) (sampling rate 22k)

.dy44Sound (Dyaxis format) (sampling rate 44k)

.dyl Dynamic link library (EPOC16)

.dyn Data (Lotus 1-2-3)


.eas Extended file attributes (OS/2)

.ebj Error-checking object file (Geoworks)

.ebs Script source (Rational Rose 98)

.ebx Compiled script (Rational Rose 98)

.ec Preprosessed GOC source code file (error-checking version)


.ecg Preprosessed GOC source code file (error-checking version)


.edt Default settings (VAX EDT editor)

.edt External editors definitions (DN)

.eeb Equation editor button bar (WordPerfect for Win)

.eer Execution error messages (Lahey Fortran)

.efs Flowchart (EasyFlow)

.eft High resolution screen font (ChiWriter)

.efx Fax (Everex EFax)

.ega EGA display font (Ventura Publisher)

.eidi Bitmap graphics (Electric Image EIDI file)

.eka Internal data files (Borland's Eureka)

.el Elisp language source code file (Emacs lisp)

.elc Compiled ELISP code (Emacs lisp)

.eli Compressed file archive (ELI)

.elt Event list (Prosa)

.emf Vector graphics (Enhanced Metafile)

.emu Terminal emulation data (BITCOM)

.enc Encoded file - UUENCODEd file (Lotus 1-2-3 - uuencode)

.enc Music (Encore)

.end Arrow-head definition file (CorelDraw)

.enff Extended Neutral File Format

.eng Dictionary engine (Sprint)

.eng Engine routines (Matlab)

.eng English documentation

.eng Graphics (charting) (EnerGraphics)

.env Data (Novell Envoy)

.env Enveloper macro (WOPR)

.env Environment file (WordPerfect for Win)

.eobj Object code (error-checking version) (Geoworks)

.epd Publication (Express Publisher)

.epi Encapsulated PostScript (text and graphics) (Express Publisher)

.eps Encapsulated PostScript (text and graphics) (Adobe Illustrator)

.eps Printer font (Epson - Xerox...) (Ventura Publisher)

.epsf Encapsulated PostScript file (text and graphics)

.epsi Encapsulated PostScript style preview file

.epsonEpson printer graphics file

.eqf Equalizer Settings file (WinAmp)

.eqn Equation (WordPerfect for Win)

.er1 Data (ERWin)

.erd Entity Relationship Diagram graphic file (Prosa)

.erm Bitmap graphics

.erm Entity Relationship Diagram model file (Prosa)

.err Error log

.err Error messages for command line compilers

.ers Satellite image header (ER Mapper file) (Earth Resource Mapping)

.erx Data (ERWin)

.esh Extended Shell batch file

.eth Document (Ethnograph 3)

.etx Structure Enhanced (setext) text

.euc Japanese text (Kanji)

.evp Sound envelope (general purpose data curves stored as doubles)


.evt Event descriptions

.evt Event log

.evy Document (WordPerfect Envoy)

.ewd Document (Express Publisher for Windows)

.ewl Document (Microsoft Encarta)

.ex3 Device driver (Harvard Graphics 3.0)

.exc Exclude file for Optimize (do not process) (QEMM)

.exc Rexx language source code file (VM/CMS)

.exc Text document

.exe Directly executable program (MSDOS)

.exm Msdos executable system-manager compliant (HP calculator)

.exp Express schema (STEP)

.exp Protected mode executable program (PharLap)

.ext Extension file (Norton Commander)

.exx Intermediate file by MsgPut (IBM LinkWay)

.ezf Fax (Calculus EZ-Fax)


.f Compressed file archive (Freeze)

.f Fortran language source code file (fixed form)

.f01 Fax (perfectfax)

.f06 Dos screen text font - height 6 pixels (fntcol13.zip)

.f07 Dos screen text font - height 7 pixels (fntcol13.zip)

.f08 Dos screen text font - height 8 pixels (fntcol13.zip)

.f09 Dos screen text font - height 9 pixels (fntcol13.zip)

.f10 Dos screen text font - height 10 pixels (fntcol13.zip)

.f11 Dos screen text font - height 11 pixels (fntcol13.zip)

.f12 Dos screen text font - height 12 pixels (fntcol13.zip)

.f13 Dos screen text font - height 13 pixels (fntcol13.zip)

.f14 Dos screen text font - height 14 pixels (fntcol13.zip)

.f16 Dos screen text font - height 16 pixels (fntcol13.zip)

.f2r Music (Farandole Linear Module format)

.f3r Music (Farandole blocked linear module format)

.f77 Fortran 77 language source code file

.f90 Fortran 90 language source code file (free form)

.f96 Fax (Frecom FAX96)

.fac Bitmap graphics (UNIX Faceserver image file) (Usenix FACE)

.face Bitmap graphics (UNIX Faceserver image file) (Usenix FACE)

.fal Bitmap graphics (image header information) (Q0 format)

.faq Frequently Asked Questions (text file)

.far Music (Farandole Composer Module)

.fas Compiled program (Macsyma)

.fav Favorites shortcut (MS Outlook)

.fax Fax (generic Group 3 1bit encoded data) (most Fax programs)

.fbm Fuzzy Bitmap

.fc Spell checking dictionary (Harvard Graphics 2.0)

.fcm Binary file patch file (forward compression) (jlpak10.zip)

.fd Declaration file (MS Fortran)

.fd Field offsets for compiler (DataFlex)

.fd Resource file (Front Door)

.fdf Forms document (Adobe Acrobat)

.fdw Form (F3 Design and Mapping)

.feb Figure editor button bar (WordPerfect for Win)

.fei Fatal Error Infotable (Geoworks)

.ff Intelligont FIAS format

.ff Outline font description (Agfa Compugraphics)

.fff Fax (defFax)

.ffi Atech FastFont (AllType)

.ffivwFile Format for the Interchange of Virtual Worlds

.fft Fast Fourier Transform analysis data

.fft Text file (DCA/FFT Final Form Text - DisplayWrite)

.fh3 Vector graphics (Aldus FreeHand 3.x)

.fh4 Vector graphics (Aldus FreeHand 4.x)

.fi Interface file (MS Fortran)

.fif Graphics (Fractal Image Format)

.fig Linker options (Lahey Fortran)

.fil File listing

.fil File template (Application Generator)

.fil Files list object file (dBASE Application Generator)

.fil Overlay (WordPerfect)

.fin Print-formatted text file (Perfect Writer - Scribble - MINCE)

.fio Graphics filter (Aldus PhotoStyler)

.fit File Index Table (Windows NT)

.fit Graphics and data (Flexible Image Transport System)

.fits Graphics and data (Flexible Image Transport System)

.fix Patch file

.fky Macro file (FoxPro)

.fl Sound (Floating format) (hardware dependant not transportable)

.flb Format library (Papyrus)

.flc Animation (AutoDesk FLIC format) (Autodesk Animator)

.fld Folder (Charisma)

.fli Animation (AutoDesk FLIC format) (Autodesk Animator)

.fli Tex font library (EmTeX)

.flm Film Roll (AutoCAD/AutoShade)

.flt Data filter file (Alsud - Micrografx Picture Publisher - MS Word)

.flt Flight file (MultiGen)

.flt Graphics filter (Asymetrix ToolBook - Corel)

.flx Animation format

.flx Compiled binary (DataFlex)

.flx Database (Flexstor format)

.fm Database (FileMaker Pro)

.fm1 Spreadsheet (Lotus 1-2-3 release 2.x)

.fm3 Device driver (Harvard Graphics 3.0)

.fm3 Spreadsheet (Lotus 1-2-3 release 3.x)

.fmb File Manager Button bar (WordPerfect for Win)

.fmf Font or icon file (IBM LinkWay)

.fmk Makefile (Fortran PowerStation)

.fmo Compiled format file (dBASE IV)

.fmt Fast loading format (TeX)

.fmt Format file (dBASE IV - FoxPro - Clipper 5 - dBFast - Gate3)

.fmt Style sheet (Sprint)

.fmv Full Motion Video file

.fn3 Font file (Harvard Graphics 3.0)

.fnd Saved search (Windows 95)

.fnt Font file (many)

.fnx Inactive font (Exact)

.fo1 Font file (Borland Turbo C)

.fo2 Font file (Borland Turbo C)

.fog Fontographer Database File (Fontographer3.5)

.fol Folder of saved messages (1st Reader)

.fon Bitmap font file (many - Windows 3.x font library)

.fon Log of all calls (Procomm Plus)

.fon Phonebook (Terminate - Terminator - Telix)

.font Font data (unix)

.fop Bitmap graphics (Freedom of Press)

.for Form (WindowBase)

.for Fortran language source code file (fixed form)

.fot Truetype font styles file (installed font)

.fox Foxbase executable (precompiled .prg) (FoxBase)

.fp Configuration file (FoxPro)

.fp Data (FileMaker Pro)

.fp1 Game data (Flying Pigs for Windows)

.fp3 Document (FileMaker Pro 3.0)

.fpc Catalog (FoxPro)

.fpd TMT Pascal compiled unit (TMT Pascal)

.fpt Memo field tables (FoxPro)

.fpw Floorplan drawing (FloorPLAN plus for Windows)

.fpx Bitmap graphics (Kodak FlashPix)

.fr3 Renamed dBASE III+ form file (dBASE IV)

.frf Font database file (FontMonger)

.frg Uncompiled report file (dBASE IV)

.frl Library (GP-Forth)

.frm Form ie. dialog layout (Visual Basic)

.frm Formula (Fractint)

.frm Merge form (WordPerfect)

.frm Order or registration form (text file)

.frm Report file (dBASE IV - Clipper 5 - dBFast)

.fro Compiled report file (dBASE IV)

.frp Form (PerForm PRO Plus - FormFlow)

.frs Screen Font Resource (WordPerfect for Win)

.frt Additional (FPT) report description file (FoxPro)

.frt GP-Forth language source code file (GP-Forth)

.frx Form stash file (binary) (Visual Basic)

.frx Main (DBF) report description file (FoxPro)

.frz Freeze file (EPOC)

.fs Bitmap graphics (Usenix FaceServer file)

.fsl Form (Paradox for Windows)

.fsm Music format (Farandole Composer WaveSample)

.fssd Sound

.fst Linkable program (dBFast)

.fsx Data (Lotus 1-2-3)

.ftm Font file (Micrografx)

.ftn Fortran language source code file (fixed form)

.ftp Configuration (FTP Software PC/TCP)

.ftp Document (FTP Voyager)

.fts Full text search (Windows 95)

.fts Graphics (Flex Image Transport)

.fw Database (FrameWork)

.fw2 Database (Framework II)

.fw3 Database (Framework III)

.fweb Fortran WEB

.fx On-line guide (FastLynx)

.fxd Phonebook (FAXit)

.fxp Executable precompiled .prg (FoxPro)

.fxs Fax Transmit Format graphics (WinFax)

.fzp Dye Sub printing support file (Fargo Primera colour printer)


.g Data chart (APPLAUSE)

.g16 Compiled config (GoldED for DOS)

.g3 Bitmap graphics (Group 3 FAX file)

.g8 Green channel image data (24bit 3D animation) (Cubicomp


.g8 Raw graphics (one byte per pixel) plane three (PicLab)

.gal Gallery (Corel Multimedia Manager)

.gam Fax (GammaFax)

.gb Chinese text

.gb Gameboy game

.gbl Global definitions (VAXTPU editor)

.gbl Global module in Basic programs

.gc1 Lisp language source code file (Golden Common Lisp 1.1)

.gc3 Lisp language source code file (Golden Common Lisp 3.1)

.gcd Generic CAD Drawing format (vector)

.gdf Dictionary file (GEOS)

.gds McDonnell-Douglas Things

.ge Config file (GEcho)

.ged Compiled config file (GoldED for DOS)

.ged Graphics (Graphic Environment Document) (Arts & Letters)

.ged Graphics editor file (EnerGraphics)

.gef Graphics Exchange Format

.gem Vector graphics (Digital Research GEM metafile) (Ventura Publisher)

.gen Compiled template (dBASE Application Generator)

.gen Generated text file (Ventura Publisher)

.geo Compiled config file (GoldED for OS/2)

.geo Geode (GEOS executable) (Geoworks)

.gex Config file (GEcho)

.gf Font file (MetaFont)

.gfb Compressed GIF image (GIFBlast)

.gfi Genigraphics Graphics Link presentation

.gfo SGI Radiosity

.gft Font file (GEM - NeoPaint)

.gfx Genigraphics Graphics Link presentation

.gfx Graphics Files (Instant Artist)

.gib Chart (Graph-in-the-Box)

.gid General index (Windows 95 help)

.gif Bitmap graphics (GIF87A/GIF89A CompuServe Graphics Interchange


.giff Bitmap graphics (GIF87A/GIF89A CompuServe Graphics Interchange


.gim Genigraphics Graphics Link presentation

.gis Bitmap graphics (Erdas gray-scale image)

.giw Presentation (Graph-in-the-Box for Windows)

.gix Genigraphics Graphics Link presentation

.gkh Disk Image (VFX SD EPS ASR TS) (Ensoniq)

.gks Graphics Kernel System

.gl Animation (GRASP - GRAphical System for Presentation format)

.gl Script (GALink)

.glb Global module in Basic programs

.glm Datafile (Glim)

.glo Auxiliary for for glossary (LaTeX)

.glo Global module in Basic programs

.gls Datafile (Across)

.gly Glossary (MS Word)

.gm Bitmap graphics (Autologic files)

.gm2 Bitmap graphics (mode 2 black/white) (Autologic files)

.gm4 Bitmap graphics (mode 4 gray-scale) (Autologic files)

.gmf CGM graphics (APPLAUSE)

.gmp Geomorph tile map (SPX)

.gna Genigraphics Graphics Link presentation

.gnt Generated code (Micro Focus COBOL/2)

.gnx Genigraphics Graphics Link presentation

.go Bitmap graphics (GraphOn graphics file)

.gobj Object code (non-error-checking version) (Geoworks)

.goc GOC language source code file (Geoworks)

.goe Satellite image data (GOES file) (McIDAS system)

.goes Satellite image data (GOES file) (McIDAS system)

.goh Goc language header file (Geoworks)

.gouldBitmap graphics (Gould scanner file)

.gp Geode parameter file (Geoworks)

.gp Gofer project (Haskell language dialect)

.gp4 GTX Group IV format

.gph Graph (Lotus 1-2-3/G)

.gpk Compressed Omnigo file archive (Geos package)

.gq Epson's page description language (printer)

.gr2 Screen driver (Windows 3.x)

.gra Chart (MS Graph 97)

.gra Datafile (SigmaPlot)

.gra Graph (Microsoft Graph)


.graspAnimation (GRAphical System for Presentation format)

.gray Bitmap graphics (raw gray bytes)

.grb Bitmap graphics B&W binary (GROB Graphic Object) (HP-48sx


.grb Ms-DOS Shell Monitor file (MS-DOS 5)

.grd Drivers for GRX (graphics library)

.grdefUI resource file (Geoworks)

.grf Graph file (Graph Plus - Charisma)

.grib Gridded Binary (FM 92-VIII Ext. GRIdded Binary file) (WMO CBS)

.grn Drivers for GRX (graphics library)

.grp Group file (Windows 3.x - Papyrus)

.grp Pictures group (PixBase)

.gry Graphics (Raw GREY)

.gs Gofer script (Haskell language dialect)

.gs1 Presentation (GraphShow)

.gsd GSM internet realtime audio

.gsd Vector graphics (Professional Draw)

.gsm Sound (GSM 6.10 prI-ETS 300 036 13kbit/s) (Internet phones)

.gsp Sketch (Geometer's Sketchpad)

.gss Script (Geometer's Sketchpad)

.gsw Worksheet (GraphShow)

.gtar Compressed file archive (GNU tar)

.gtx Raster graphics (GTX Group IV)

.gup Data (PopMail)

.gv GrandView outline file

.gwx Genigraphics Graphics Link presentation

.gwz Genigraphics Graphics Link presentation

.gxl Graphics library (Genus)

.gym Generic symbol file (Geoworks)

.gz Compressed file archive (GNU Zip)

.gzip Compressed file archive (GNU Zip)


.h Header file

.h! Help database (Flambeaux Help - Perfect Database)

.h++ Header file (C++)

.h-- Header file (Sphinx C--)

.ha Compressed file archive (HA)

.hal Data file (Hyper Access Lite OS/2)

.ham Disk Drivers NPA (Novell NetWare)

.hap Compressed file archive (HAP)

.hbk Handbook (Mathcad)

.hbm Hotline bookmark

.hc Header file

.hcom Sound (Macintosh)

.hdf Bitmap graphics (Hierarchical Data File) (NCSA)

.hdf Help file (Help Development Kit)

.hdl Alternate download file listing (Procomm Plus)

.hdr Database header (Pc-File+)

.hdr Datafile (Egret)

.hdr Message header (Procomm Plus - 1st Reader)

.hds Hierarchical Data System

.hdw Vector graphics (Harvard Draw)

.hdx Help index (AutoCAD - Zortech C++)

.hed Document (HighEdit)

.hel Game data (Microsoft Hellbender)

.hep Novell Help Librarian Data File (Novell NetWare)

.hex Encoded file archive (ascii) (Macintosh BinHex)

.hex Hex dump

.hfi Hp Font Info file (GEM)

.hgl Highlight groups definitions (DN)

.hgl Vector graphics (HP Graphics Language)

.hh C++ header file

.hhh Precompiled header file (Power C)

.hhp Help information for remote users (Procomm Plus)

.hi High scores (games)

.hig High scores (games)

.hin Molecule (HyperChem)

.hips Bitmap graphics (HIPS file)

.his History of executing/viewing/editing (DN)

.hlb Help library (VMS)

.hlp Program online help information

.hlx Help file (MultiEdit)

.hlz Packed help file (MultiEdit)

.hmi Music (MIDI)

.hmm Alternate Mail Read option menu (Procomm Plus)

.hmp Music (MIDI)

.hnc CNC program files Heidenhain (?) dialog

.hof Game data (best scores)

.hp Primary hash file (THOR database)

.hp Printout file for HP printers/plotters (HP/GL)

.hp8 Text in HP Roman8 character set (NewWave Write)

.hpf HP LaserJet fonts (PageMaker)

.hpg Vector graphics (HPGL plotter file) (AutoCad - Harvard Graphics)

.hpgl Vector graphics (plotter file) (Hewlett-Packard Graphics Language)

.hpi Font information (GEM)

.hpj Help project (MS Help Compiler)

.hpj Printed to file (HP LaserJet)

.hpk Compressed file archive (HPack)

.hpl Vector graphics (Hewlett-Packerd LasetJet)

.hplj Vector graphics (Hewlett-Packerd LasetJet)

.hpm Alternate Main menu for privileged users (Procomm Plus)

.hpm Emm text (HP NewWave)

.hpm High Performance Map (Quaestor 1.x)

.hpp C++ header (Zortech C++ - Watcom C/C++)

.hpp Vector graphics (Hewlett-Packard Printer Control Language)

.hppclVector graphics (Hewlett-Packard Printer Control Language)

.hqx Encoded Macintosh archive (ascii) (BinHex)

.hrf Bitmap graphics (Hitachi Raster Format) (CADCore)

.hrh Common header for resources and C++

.hrm Alternate Main menu for limited/normal users (Procomm Plus)

.hrz Graphics (SSTV)

.hs Literate Haskell source code file

.hs2 Monochrome image (Postering)

.hsc 2-op FM music file (HSC tracker)

.hsi Bitmap graphics (Handmade Software Inc) (Image Alchemy)

.hsp WWW page project (HomeSite)

.hst Graphics histogram (HSI raw file) (Handmade Software)

.hst History

.ht Data (HyperTerminal)

.htm HyperText Markup Language document (WWW)

.html HyperText Markup Language document (WWW)

.htmlsHyperText Markup Language document with server-side include (WWW)

.htt HyperText Template

.htx HTML template (MS FrontPage)

.hwd Presentation (Hollywood)

.hx Cross-reference hash file (THOR database)

.hxm Alternate Protocol Selection menu for all users (Procomm Plus)

.hxx C++ header

.hy1 Hyphenation algorithms (Ventura Publisher)

.hy2 Hyphenation algorithms (Ventura Publisher)

.hyc Data (WordPerfect)

.hyd Hyphenation dictionary (WordPerfect for Win)

.hyp Compressed file archive (Hyper)

.hz Chinese text


.i Analysis data (Phase Vocorder)

.i Preprocessor output file (Borland C Preprocessor)

.i3 Interface source (Modula-3)

.iax Bitmap graphics (IBM Image Access eXecutive file)

.ibg Planetary images by NASA (PDS format)

.ibm Compressed file archive (Internal IBM only) (ARCHDOS)

.ic M3CG intermediate language file (Modula-3)

.ic1 Bitmap graphics (Atari Image)

.ic2 Bitmap graphics (Atari Image)

.ic3 Bitmap graphics (Atari Image)

.ica Bitmap graphics (Image Object Content Architecture)

.ica Citrix file

.ica Icon archive (IoCA)

.icb Bitmap graphics (Targa bitmap)

.icc Bitmap graphics (Kodak ICC printer file)

.ice Archive (Cracked LHA) (old Lha)

.icm ICC configuration

.icn Graphics (RIP icon)

.icn Icon language source code file

.ico Icon image (Windows 3.x)

.icon Icon image (1bit) (Sun icon file) (Unix)

.icp Parameter file (IContact) (Unix)

.icr Bitmap graphics (NCSA Telnet Interactive Color Raster graphic


.id Disk identification file

.idb Database (IDA)

.idc Bitmap graphics (Core Software Tech CORE IDC file)

.idc Document (Internet Database Connector)

.idc IDA C language source code file (IDA)

.idd MIDI Instrument Definition

.ide Project (Borland C++ 4.x)

.idf MIDI instrument definition

.idl Interface definition file (Visual C++)

.ids Imported names format (IDA)

.idw Vector graphics (IntelliDraw)

.idx Header information (CMYK image) (Stork format)

.idx Index (many - FoxPro)

.ief Bitmap graphics (Image Exchange Format)

.ifd Form (JetForm Design)

.iff Bitmap graphics (Sun TAAC Image File Format)

.iff Bitmap graphics or sound (Amiga IFF/8SVX Interchange File Format)

.ifp Script (KnowledgeMan)

.ifs Fractal image compressed file (YuvPak)

.ifs Installable file system (OS/2)

.ifs Iterated function system fractal (Fractint)

.ig Generic interface source (Modula-3)

.iges 2D or 3D CAD model (Initial Graphics Exchange Specification


.igf Inset Systems metafile

.igs 2D or 3D CAD model (Initial Graphics Exchange Specification


.ihp Help file (Watcom)

.ihs Inbound History (Bink/+)

.ii Preprocessed C++ source code (gcc)

.iif Interchange file (QuickBooks for Windows)

.il Inline expansion file (Fortran 90)

.il hDC Designer Icon Lin Dll format

.ilb Data (Scream Tracker)

.ilbm Bitmap graphics (Amiga Interleaved Bitmap format)

.ilk Outline of program's format (incremental linker) (MS ILink)

.im Bitmap graphics (Sun raster file)

.im1 Bitmap graphics (1bit) (Sun raster file)

.im24 Bitmap graphics (24bit) (Sun raster file)

.im32 Bitmap graphics (32bit) (Sun raster file)

.im8 Bitmap graphics (8bit) (Sun raster file)

.ima Graphics (WinImage)

.ima Mirage vector graphics (EGO - Chart - Autumn)

.image Disk Image (Disk Copy, ShrinkWrap)

.img Bitmap graphics (GEM or ADEX format) (Ventura Publisher)

.img Disk Image (Disk Copy, ShrinkWrap)

.imp Compressed file archive (IMP)

.imp Pascal implementation

.imp Spreadsheet (Lotus Improv)

.imq Image presentation (ImageQ)

.imq Planetary images by NASA (PDS format)

.in Input

.in$ Installation file (HP NewWave)

.in3 Input device driver (Harvard Graphics 3.0)

.inb Test script (Vermont HighTest)

.inc Include file (several programming languages)

.ind Data Index (dBASE IV)

.inf Hypertext help system file (OS/2)

.inf Information (ascii file)

.inf Setup information

.info GNU info reader (output from texinfo) (unix)

.info Icon Data (Amiga)

.ingr Intergraph Raster File Format

.ini Initialization file

.ink Pantone reference fills file (CorelDraw)

.inl C++ inline function implementation

.inn Overlay (Micro Focus COBOL/2)

.ins Datafile (WordPerfect)

.ins Installation script (1st Reader)

.ins Instrument File (Adlib - Ensoniq)

.ins Internet communications settings (MS IIS)

.int Interface module source (Borland)

.int Intermediate code (semi-compiled) (Signature - Micro Focus


.inx Index (Foxbase)

.io Compressed file archive (CPIO)

.io Object file (Modula-3)

.iob 3d graphics database in TDDD format

.ioc Organizational chart (Instant ORGcharting!)

.ion Descript.ion file (file descriptions) (4DOS)

.ip Data (Interactive Physics)

.ip Inspection Procedures (NRC Inspection Manual)

.ipl Pantone Spot reference palette file (CorelDraw)

.ips IPScript (IPIX)

.ipx IPIX file (IPIX)

.iqy Web query file (MS Excel)

.irc Sound (IRCAM format)

.iris Bitmap graphics (Silicon Graphics RGB image file)

.irs Resource (WordPerfect)

.irtp Graphics (Graphicon-2000 Interactive Real-Time PHIGS)

.is Intermediate assembly file (Modula-3)

.isd Spelling Checker dictionary (RapidFile)

.ish Compressed file archive (ISH)

.iso ISO-9660 table

.isp Internet service provider settings (MS IIS)

.it Music (Impulse Tracker)

.it Settings (intalk)

.itf Interface file (JPI TopSpeed Pascal)

.its Internet Document Set

.iv 3D object (Open Inventor format)

.iv-vrmlInventor VRML Format document

.ivb Bitmap graphics (Truevision Targa format)

.ivr Virtual reality world (live picture)

.ivt Information title (InfoViewer)

.iw Presentation flowchart (IconAuthor - HSC InterActive)

.iw Screensaver (Idlewild)

.iwa Text document (IBM Writing Assistant)

.iwp Text document (Wang)

.ix Linker information (Modula-3)

.izt Binary token file (IZL)


.j Compressed file archive (JAR)

.jam Jam messagebase (FTN software)

.jam Music (JamTracker module)

.jar Compressed file archive (Java archive) (JAR)

.jas Bitmap graphics (JAS Compressed)

.jascGraphics (JAS Compressed)

.jav Java language source code file

.javaJava language source code file

.jbd Datafile (SigmaScan)

.jbf Jasc Browser File

.jbigBitmap graphics (1-bit raster image) (Joint Bilevel Image Group)

.jbx Project file (Project Scheduler 4)

.jcm Java commerce message

.jet Fax (Hybrid JetFax)

.jff Bitmap graphics (JPEG File Interchange Format)

.jfi Bitmap graphics (JPEG File Interchange Format)

.jfifBitmap graphics (JPEG File Interchange Format)

.jif Bitmap graphics (JPEG File Interchange Format)

.jis Japanese Industry Standard (text)

.jms Music format (JMusic file) (UltraForce)

.jn1 Game data (Epic MegaGames Jill of the Jungle)

.job Job object (Scheduler)

.joi Join conferences file (XBoard)

.jor Journal file (Gupta SQLWindows)

.jou Journal file (VAX Edt editor)

.jpc Bitmap graphics (Japan Picture format)

.jpe Bitmap graphics (JPEG Joint Photography Experts Group format)

.jpegBitmap graphics (JPEG Joint Photography Experts Group format)

.jpg Bitmap graphics (JPEG Joint Photography Experts Group format)

.jrc Compressed file archive (JRchive)

.js JavaScript language source code file (script)

.jsm Jigsaw file (JugWin)

.jss Jigsaw file (JugWin)

.jtf Bitmap graphics (JPEG Tagged Interchange Format)

.jtf Fax (Hayes JT Fax)

.jut Jutvision Scene (Jutvision)

.jw Text document (JustWrite)

.jwl Library (JustWrite)

.jzz Spreadsheet (Jazz)


.k3dDescription of macro language (3DS)

.karKaraoke (MIDI music with word track)

.karPrecompiled .prg for KARAT (Rus. FOX+ 2.0)

.kb Keyboard script (Borland C++ 4.5)

.kb Program source (Knowledge Pro)

.kbdKeyboard mapping (LocoScript - Signature - Procomm Plus)

.kbmKeyboard mapping (Reflection 4.0)

.kclLisp language source code file (Kyoto Common Lisp)

.kdcBitmap graphics (Kodak Digital Camera) (PhotoEnhancer)

.kdkBitmap graphics (Kodak proprietary decimated TIFF format)

.kexMacro (KEDIT)

.keyArchive .key-file (OS/2)

.keyDatafile (Forecast Pro)

.keyKeyboard macros

.keySecurity file eg. Registration info

.kfxGraphics (Group 4 image) (KoFax)

.kitPower Chords drum kit file (Power Chord)

.kmlKedit Macro Library

.knnDatabase key file (Clarion)

.kppToolpad (SmartPad)

.kpsIbm KIPS bitmap graphics

.kqpBitmap graphics (Konica Quality Photos)

.krzKurzweil K2000 File (Kurzweil)

.kybKeyboard mapping (FTP Software PC/TCP)

.kyeGame data (Kye)


.l L-System fractal (Fractint)

.l Lex language source code file

.l Linker directive file (WATCOM wlink)

.l Lisp language source code file

.la Netscape packetized audio (LiveAudio)

.lab Datafile (NCSS - SOLO)

.lab Mailing labels (Q+E for MS Excel)

.lam Streaming audio metafile (Netscape Media Player)

.lan Bitmap graphics (Erdas true colour image)

.lan LAN Drivers (Novell NetWare)

.landsatBitmap graphics (EOSAT's Landsat Thematic Mapper data file)

.latex Text document (LaTeX)

.lay Word chart layout (APPLAUSE)

.lbg Label generator data (dBASE IV)

.lbl Label (dBASE IV - Clipper 5 - dBFast)

.lbm Bitmap graphics (Amiga Interleaved Bitmap format) (Deluxe Paint)

.lbm Linear bitmap graphics (XLib)

.lbo Compiled label (dBASE IV)

.lbr Compressed file archive (LU)

.lbr Display driver (Lotus 1-2-3)

.lbt Additional (FPT) label description file (FoxPro)

.lbx Main (DBF) label description file (FoxPro)

.lcf Linker Control File (Norton Guides compiler)

.lch Chart (IBM Works for OS/2)

.lck Lock file (especially for database access control)

.lcl Data (FTP Software PC/TCP)

.lcn Lection (WordPerfect)

.lcs Datafile (ACT! History Files)

.lcw Spreadsheet (Lucid 3-D)

.ld Long Distance codes file (Telix)

.ld1 Overlay file (dBASE)

.ldb Data filer database (IBM Works for OS/2)

.ldb Record-locking information (MS Access)

.ldf Data filer form (IBM Works for OS/2)

.ldf Library definition file (Geoworks)

.le Executable image (DOS/4GW PM 32X DOS Extender)

.leg Document (Legacy)

.les Lesson (check *.cbt)

.lev Level file (eg. NetHack 3.x)

.lex Lexicon (dictionary) (many)

.lfd LucasArts resource file (LucasArts games)

.lft Laser printer font (ChiWriter)

.lg Compressed file archive (Arhangel)

.lg Logo procedure definitions (LSRHS Logo)

.lgo Logo for header and footer (SuperFax)

.lgo Startup logo code (Windows 3.x)

.lha Compressed file archive (LHA - LHARC)

.lhs Literate Haskell source code file

.lhw Compressed Amiga file archive (LHWarp)

.lhz Compressed file archive (LHA)

.lib Library file (several programming languages)

.lic License file

.lif Compressed file archive (CA Clipper installer)

.lif Logical Interchange Format data file (Hewlett-Packard)

.lim Compressed file archive (Limit)

.lin Line types (AutoCAD)

.lin Vector data (ARC format)

.lis Listing (VAX)

.lispm Bitmap graphics (Lisp Machine file)

.lj Bitmap graphics (HP LaserJet graphics file)

.lku T9000 linkable unit

.ll3 Laplink III related file (document) (LapLink III)

.lma Netscape packetized audio (LiveAudio)

.lmp Demo for Doom (3D computer game) (Doom - Doom2)

.ln03 Bitmap graphics (DEC LN03+ Sixel file)

.lng Language definition file

.lng Language extensions (Lahey Fortran)

.lnk Link (shortcut) (Windows 95)

.lnk Linker script (.RTLink)

.loc Localisation string resource header file

.lod Load file

.lof Auxiliary file for List Of Figures (LaTeX)

.log Log file

.lot Auxiliary file for List Of Tables (LaTeX)

.lpc Printer driver (TEKO)

.lpc Sound (Linear Predictive Coding)

.lpd Nuts and Bolts file (Helix)

.lrc Intel Video Phone file

.lrf Linker response file (MS C/C++)

.lrp Report (IBM Works for OS/2)

.lrs Language Resource File (WordPerfect for Win)

.lrt Log file (Yacc)

.lsa Ascii data (LightScape Technologies)

.lsb Binary data (LightScape Technologies)

.lsp Lisp language source code file (AutoLISP - Xlisp)

.lss Spreadsheet (Legato - IBM Works for OS/2)

.lst Keyboard macro (1st Reader)

.lst List file (archive index - compiler listfile)

.lst Listing (e.g. source code)

.lst Spool file (Oracle)

.ltm Bitmap graphics (EOSAT's Landsat Thematic Mapper data file)

.ltm Form (Lotus Forms)

.ltx Mathematical text document (LaTeX)

.lwd Text document (LotusWorks)

.lwob Lightwave Object Format

.lwp Document (Lotus Word Pro)

.lwp Word processor (IBM Works for OS/2)

.lyr Song lyrics (ascii)

.lzd Difference file for binaries (Ldiff 1.20)

.lzh Compressed file archive (LHA - LHARC)

.lzs Compressed file archive (LARC)

.lzw Compressed Amiga file archive (LHWarp)


.m Common binary file name extension (Maple)

.m Function and commands (Matlab M-file - Mathematica)

.m Macro module (Brief)

.m Objective-C language source code file (gcc)

.m Script file (Miranda programming language)

.m Standard package (Mathematica)

.m11 Sound (Farallon's MacRecorder format) (sampling rate 11k)

.m11 Text file (MASS11)

.m1a MPEG-1 audiostream

.m1s MPEG-1 systemstream

.m1v MPEG-1 IPB videostream

.m2 Modula 2 language source code file

.m22 Sound (Farallon's MacRecorder format) (sampling rate 22k)

.m2a Sound (MPEG-2 audio)

.m2v Video (MPEG-2 IPB videostream)

.m3 Modula3 language source code file

.m3a Sound (MPEG-3 audio)

.m3d 3d animation macro (Corel Motion)

.m3u Sound reference (MPEG URL)

.m4 M4 preprocessor file (unix)

.m7 Sound (Farallon's MacRecorder format) (sampling rate 7k)

.m_u Backup of boot sector FAT and boot dir (MazeGold)

.ma Ascii file (notebook) (Mathematica)

.ma hDC products for MicroApp executable files (MicroApp)

.ma3 Macro (Harvard Graphics 3.0)

.mac Bitmap graphics B&W (Apple Macintosh MacPaint file)

.mac Macro

.macp Bitmap graphics B&W (Apple Macintosh MacPaint file)

.mad Module shortcut (MS Access)

.maf Form shortcut (MS Access)

.mag Woody Lynn's MAG graphics format (MPS Magro Paint System)

.mah Settings (Mahjongg Solitaire)

.mai Mail message (VAX)

.mak Project makefile

.mam Macro shortcut (MS Access)

.man Formatted manual page

.map Color palette (colormap intensities and indices)

.map Format data (Micrografx Picture Publisher)

.map Geographical map (Atlas MapMaker)

.map Linker map file

.map Network map (AccView)

.maq Query shortcut (MS Access)

.mar Assembly program (VAX Macro)

.mar Report shortcut (MS Access)

.marm Makefile for MARM platform (EPOC)

.mas Smartmaster set (Freelance Graphics)

.mat Matrix data file (Matlab)

.mat Table shortcut (MS Access)

.max Max language source code file

.max Scene (3D Stdio Max)

.maz Data (dVS/dVISE)

.maz Game data (Hover maze)

.mb Binary file (bitmaps etc.) (Mathematica)

.mb Memo field values for database (Paradox)

.mb1 Game data (Apogee Monster Bash)

.mbfavsBitmap graphics (24bit) (AVS X image file)

.mbfavsBitmap graphics (AVS X image file)

.mbfx Bitmap graphics (24bit) (AVS X image file)

.mbfx Bitmap graphics (AVS X image file)

.mbk Multiple index file backup (dBASE IV)

.mbm Multi-bitmap file (EPOC)

.mbx Mailbox (Eudora/Zerberus)

.mc M3CG intermediate language file (Modula-3)

.mc Manual Chapter (NRC Inspection Manual)

.mc$ Magic Xchange package (Magic Cap file archive)

.mcc Configuration file (Mathcad)

.mcc Dialer10 calling card

.mcc Shortcut to MSN (Windows 95)

.mcd Document (Mathcad)

.mcf Font file (Mathcad)

.mcf Graphics (Hotsauce)

.mci Command script (Media Control Interface)

.mcl Macro library (MultiEdit)

.mcp Application script (Capsule)

.mcp Composed Media multimedia file (NetMC Player)

.mcp Printer driver (Mathcad)

.mcs Image (MathCAD)

.mcw Text document (MacWrite II - MS Word for Macintosh)

.md Compressed file archive (MDCD)

.mda Add-in (MS Access)

.mdb Database (MS Access)

.mde MDE database (MS Access)

.mdl Geometrical model (3D Design Plus)

.mdl Object design model (Rational Rose 98)

.mdl Spreadsheet (CA-Compete!)

.mdm Modem definition (TELIX)

.mdn Blank database template (MS Access)

.mdp Project workspace (MS Developer Studio)

.mdr Microdrive file (ZX Spectrum emulator)

.mdt Add-in data (MS Access)

.mdt Data table (MS ILink incremental linker)

.mdw Workgroup information (MS Access)

.mdx Multiple index file (dBASE IV)

.mdz Database wizard (MS Access)

.mdz Description of music module (Cubic Player - Cross-View)

.me Ascii text (READ.ME)

.me Configuration (MultiEdit)

.me Formatted manual page with me macros

.meb Macro Editor bottom overflow file (WordPerfect Library)

.mec MECCA source (Maximus)

.med Macro Editor delete save (WordPerfect Library)

.med Music format (Amiga MED/OctaMED)

.mem Macro Editor macro (WordPerfect Library)

.mem Memory variable save file (Clipper - dBASE IV - FoxPro)

.mem Memos datafile (Clarion)

.meq Macro Editor print queue file (WordPerfect Library)

.mer Macro Editor resident area (WordPerfect Library)

.mes Macro Editor work space file (WordPerfect Library)

.mes Message

.met Document (Omnipage Pro)

.met Graphics metafile (OS/2)

.met Macro Editor top overflow file (WordPerfect Library)

.met Metafile (OS/2)

.meu Menu group (DOS Shell)

.mex Dynamically linked subroutines (Macintosh) (Matlab)

.mex Macro Editor expound file (WordPerfect Library)

.mex4 Dynamically linked subroutines (Sun-4/SPARC) (Matlab)

.mexds Dynamically linked subroutines (DECStation) (Matlab)

.mexhp3Dynamically linked subroutines (HP9000/series 300) (Matlab)

.mexhp7Dynamically linked subroutines (HP9000/series 700) (Matlab)

.mexn Dynamically linked subroutines (NeXT) (Matlab)

.mexrs6Dynamically linked subroutines (IBM RS/6000) (Matlab)

.mexsg Dynamically linked subroutines (SGI) (Matlab)

.mf Metafont text file (TeX)

.mfd Monadic functions (ABC programming language)

.mfj MetaFont job (batch input)

.mfm Music format (DMP)

.mft Style file (MetaFont source formatter)

.mg Generic module source (Modula-3)

.mgf Font (Micrografx)

.mgf Materials and Geometry Format

.mgr Bitmap graphics (MGR bitmap file)

.mgx Drawing (Designer 4.1)

.mht Message HTML document

.mhtml Message HTML document

.mi Miscellaneous

.mib SNMP MIB file

.mic Data (Microsoft Image Composer)

.mid Music (Musical Instrument Digital Interface)

.midi Music (Musical Instrument Digital Interface)

.mif Data (FrameMaker)

.miff Bitmap graphics (Magick Image File Format)

.mii Datafile (MicroStat-II)

.mil Raster graphics (CALS Group IV Type 2)

.mime Message in MIME format (RFC822)

.mis Mission file (many games)

.mitsu Bitmap graphics (Mitsubishi S340-10 color sublimation printer


.mix Object file (Power C)

.mk Makefile

.mke Makefile (MS Windows SDK)

.mkg Makefile

.mki Japanese graphics MAKIchan format (MagView 0.5)

.mks Data (TACT)

.ml ML language source code file

.ml3 Project (Milestones 3.x)

.mlb Macro library file (Symphony)

.mli Materials libraries (3D Studio)

.mlm Saved email (Novell GroupWise using WP5.1 format)

.mm Text document (MultiMate Advantage II)

.mm Virtual reality world (Meme)

.mmf Mail message file (MS Mail)

.mmm Multimedia movie format (RIFF RMMP) (MacroMind Director 3.x)

.mmo Memo writer file (RapidFile)

.mmp Output video format from Bravado board

.mmp makmake makefile project (EPOC)

.mnd Menu source (AutoCAD Menu Compiler)

.mng Bitmap graphics (Multiple-image Network Graphics)

.mng Map (DeLorme Map'n'Go)

.mnt Additional (FPT) menu description file (FoxPro)

.mnu Advanced macro (HP NewWave)

.mnu Menu (many)

.mnx Compiled menu (AutoCAD)

.mnx Main (DBF) menu description file (FoxPro)

.mny Account book (MS Money)

.mo Object file (Modula-3)

.mob Device definition (PEN Windows)

.mod Kernel module (Windows 3.x)

.mod Model definitions (EPOC)

.mod Modula-2 language source code file (Clarion Modula-2)

.mod Music (Amiga MODule format) (DMP - FastTracker - MDP - ST)

.mod Spreadsheet (Microsoft Multiplan)

.moi lisez.moi (read.me in French)

.mol MDL Molfile

.mon Monitor description (ReadMail)

.moo MoonRock language source code file (MoonRock)

.mov Movie (AutoCAD AutoFlix)

.mov Timebased multimedia file (Apple QuickTime)

.moz Temporary cache file (Netscape)

.mp Movie (MPEG compressed)

.mp2 Sound (MPEG-1 Layer II Audio Stream)

.mp3 Sound (MPEG-1 Layer III Audio Stream)

.mpa Sound (MPEG-1 audio stream)

.mpc Calender file (MS Project)

.mpd Monadic predicates (ABC programming language)

.mpe Movie (Moving Pictures Expert Group format)

.mpeg Movie (Moving Pictures Expert Group format)

.mpg Movie (Moving Pictures Expert Group format)

.mpm Mathplan macro (WordPerfect Library)

.mpnt Bitmap graphics (Apple Macintosh MacPaint file)

.mpp Project file (MS Project)

.mpr Generated executable menu file (FoxPro)

.mpt Bitmap graphics (Multipage TIFF)

.mpv View file (MS Project)

.mpx Compiled executable menu file (FoxPro)

.mrb Multiple Resolution Bitmap graphics (MS C/C++)

.mrc Bibliographic data (Machine-Readable Cataloging records)

.mrk CSI markup file (CAD format)

.mrk Windows User Benchmark (Windows 95)

.mrs Macro Resource file (WordPerfect for Win)

.ms Formatted manual page with ms macros

.ms Intermediate assembly file (Modula-3)

.ms Microsoft antivirus report (MSAV)

.ms Worksheet (Maple)

.msc Microsoft C makefile

.msdl Manchester Scene Description Language

.msg Digitized voice file (ZVoice)

.msg Message(s)

.msn Microsoft Network document

.msp Bitmap graphics (Microsoft Paint format)

.mss Manuscript text file (Perfect Writer - Scribble - MINCE - Jove)

.mst Document (MS Test)

.mst Minispecification file (Prosa)

.mst Setup script (MS Windows SDK)

.msw Text document (MS Word)

.msx Compressed CP/M file archive (MSX)

.mth Math file (Derive)

.mtl Wavefront

.mtm Music (MultiTracker Module)

.mtv Bitmap graphics (24bit) (MTV RayTracer)

.mtw Data file (Minitab)

.mu Menu (Quattro Pro)

.mus Sound file (MusicTime - Doom)

.mvb Data (Microsoft Multimedia Viewer)

.mvf Stop frame file (AutoCAD AutoFlix)

.mvi Movie command file (AutoCAD AutoFlix)

.mvp Project (MediaView)

.mvw Log file (Saber LAN)

.mw Text document (MacWrite II)

.mwf Animation (ProMotion)

.mwii Text document (MacWrite II)

.mwp SmartMaster (Lotus Word Pro)

.mx Common matrix routines (Matlab)

.mx Linker information (Modula-3)

.mx3 Dynamically linked subroutines (80386/486 MS-Windows) (Matlab)

.mxl Support file (PackRat 5.0)

.mxt Data (MS C)

.myp Presentation (MM Make Your Point)


.nam Name Space Modules (Novell NetWare)

.nap Vector graphics (Naplps format) (VideoShow - EnerGraphics)

.naplpsVector graphics (North American Presentation Layer Protocol


.nb Text document (Nota Bene)

.nc Graphics (Unidata netCDF)

.nc Instructions for NC (Numerical Control) machine (CAMS)

.nc Preprosessed GOC source code file (non-error-checking version)


.ncb Class browsing information (MS Developer Studio)

.ncc CNC (Computer Numeric Control) control file (CamView 3D)

.ncd Internal tree data (Norton ChangeDirectory)

.ncm Configuration message (Nokia Communicator)

.ncs Netscape Conference Call file (Netscape)

.ncsa Bitmap graphics (Hierarchical Data File) (NCSA)

.ndb Network database (Intellicom - Compex)

.ndl Data (Lotus Notes)

.ndl Inmos hardware network description file

.ndl Nodelist file

.ndx Index file (dBASE II - III - IV - dBFast)

.neo Bitmap graphics (Atari NeoChrome image file)

.net Network configuration/info file

.netcdfScientific data Network Common Data Format

.new New info

.news Bitmap graphics (NeWS image file)

.nff Haines Neutral File Format

.nff Neutral File Format (WorldToolKit)

.nfo Filioview database

.nfo Help format (Netware Folio)

.nfo Info file

.ng Online documentation database (Norton Guide)

.ngo NG linker object file (NGML)

.ngs NG compiler source file (NGC)

.nif Binary hardware network initialisation file

.nif Bitmap graphics (Navy Interchange File Format)

.niff Bitmap graphics (Navy Interchange File Format)

.nitf National Imagery Transmission Format

.nl Norton Desktop Icon Library

.nlm Netware loadable module (Novell Netware)

.nlx Form (FormWorx 3.0)

.not Notation or note

.note Help document (WordPerfect for Mac)

.now Usually README file

.np Project schedule (Nokia Planner) (Visual Planner 3.x)

.npi Source for DGEN.EXE interpreter (dBASE Application Generator)

.nrf Bitmap graphics (Neutral Raster File)

.ns2 Data (Lotus Notes)

.ns3 Data (Lotus Notes)

.nsf Data (Lotus Notes)

.nsg Data (Lotus Notes)

.nsh Data (Lotus Notes)

.nss Norton screensaver module (NC - NDW Screen Saver)

.nst Music module (NoiseTracker)

.nsx Compound index file (SuccessWare SIX 3.00)

.nt Startup files (Windows NT)

.ntf Data (Lotus Notes)

.ntr Executable ascii text file (strip header and rename) (NetRun)

.nts Executable ascii text file (strip header and rename) (NetSend)

.nts Tutorial (Norton)

.ntx Database index (Clipper 5)

.nuf Message for new users on their 1st call (Procomm Plus)

.nws Info text file (latest news) (ascii)

.nxt Sound (NeXT format)


.o Object file (Unix - Atari - GCC)

.o$$ Outfile (Sprint)

.oaz Fax (NetFax Manager)

.ob Object cut/paste file (IBM LinkWay)

.obd Binder (MS Binder)

.obj Compiled machine language code (Intel Relocatable Object Module)

.obj Object (Wavefront)

.obr Object browser data file (Borland C++)

.obs Script (ObjectScript)

.obt Template (MS Binder)

.obv Visual interface (ObjectScript)

.obz Wizard (MS Binder)

.ocf Object Craft File (Object Craft)

.ocr Incoming fax transcribed to text (FAXGrapper)

.oct Musical file (Octalizer)

.ocx OLE custom control (Object Linking and Embedding)

.oda ODA document

.oda Raster graphics (CALS Group IV Type 2)

.odifOpen Document Interchange Format

.odl Object Definition Language file (MS Developer Studio)

.ofd Form definition (ObjectView)

.off Vector graphics (Object File Format)

.ofm PostScript font description file

.ofn Document (MS Office)

.oft Item template (MS Outlook)

.ohs Outbound History (Bink/+)

.oid Object interaction diagram (Prosa/OM)

.okt Music format (8 channels) (Oktalyzer)

.olb OLE object library

.olb Object library (VAX)

.old Backup file

.ole OLE object

.oli Text file (Olivetti)

.olk Address book (MS Outlook)

.omd Class model (Prosa/OM)

.omf OMF Interchange file

.oom Swap file (Shroom)

.opa Object file (Psion OPL)

.opl OPL language source code file (Psion)

.opn Active options (Exact)

.opo Object file (Psion OPL)

.opt Optimize support file (QEMM)

.opt Options

.opw Organization chart (Org Plus for Windows)

.opx Chart (MS Organization)

.opx Inactive options (Exact)

.or8 Oracle 8 database model report (Rational Rose Oracle8)

.ora Parameter file (Oracle)

.org Calendar file (Lotus Organizer)

.org Origin plot (Microcal Origin)

.oss Search result (MS Office)

.otl Outline font description (Z-Soft Type Foundry)

.otl Ventura Publisher's Type Foundry Outline Editor format

.otx Text file (Olivetti Olitext Plus)

.out Output

.ov1 Overlay file (part of program to be loaded when needed)

.ov2 Overlay file (part of program to be loaded when needed)

.ovd Datafile (ObjectVision)

.ovl Overlay file (part of program to be loaded when needed)

.ovr Overlay file (part of program to be loaded when needed)


.p Database source code (Progress)

.p Graphics (Applause picture file)

.p Pascal language source code file

.p Rea-C-Time application parameter file (ReaGeniX code generator)

.p10 Tektronix Plot 10 drawing

.p16 Music (16 channels) (ProTracker Studio 16)

.p22 Patch file (Patch22)

.p65 Document (PageMaker 6.5)

.pa1 Worktable (PageAhead)

.pab Personal address book

.pac Bitmap graphics (Atari STAD Image)

.pac Package or song (SBStudio II)

.pad Keypad definition (Telemate)

.paint Bitmap graphics B&W (Apple Macintosh MacPaint file)

.pak Compressed file archive (PAK)

.pal Color palette

.pan Printer-specific file (copy to coreldrw.ink) (CorelDraw)

.par Parameter file (Fractint)

.par Parts application (Digitalk PARTS)

.par Permanent output file (Windows 3.x)

.pas Pascal language source code file (Pascal - Delphi)

.pat Bitmap graphics (1bit) (Patent data) (US Patent and Trademark


.pat Hatch patterns (AutoCAD - Photostyler)

.pat Polygon Attribute Table (link geographic locations to databases)

.pat Sound patch (Gravis Ultrasound)

.pat Vector fill files (CorelDraw)

.pb Fax (FAXability Plus)

.pb Phonebook (WinFax Pro)

.pb Proboard configuration files (Proboard)

.pb Setup file (PixBase)

.pb1 Document (First Publisher for Windows)

.pba Powerbasic BASIC language source code file (Genus)

.pbd Phone book (FaxNOW! - Faxit)

.pbi Powerbasic include file (Genus)

.pbi Profiler Binary Input (MS Source Profiler)

.pbk Phonebook

.pbl Powerbasic library (Genus)

.pbm Bitmap graphics (Poskanzer's Portable Bit Map format)

.pbm Planar bitmap graphics (XLib)

.pbo Profiler Binary Output (MS Source Profiler)

.pbt Profiler Binary Table (MS Source Profiler)

.pc Text file containing IBM PC specific info

.pc1 Bitmap graphics (Atari Degas Image)

.pc2 Bitmap graphics (Atari Degas Image)

.pc3 Bitmap graphics (Atari Degas Image)

.pc3 Custom palette (Harvard Graphics 3.0)

.pc8 Ascii text IBM8 character set (NewWave Write)

.pcb P-CAD database (P-CAD)

.pcc Cutout picture vector graphics (ZSoft PC Paintbrush)

.pcd Bitmap graphics (multi-resolution) (Kodak Photo-CD)

.pcf Profiler Command File (MS Source Profiler)

.pch Patch file

.pch Precompiled header (MS C/C++)

.pcj Multimedia authoring tool graphics (IBM's Linkaway-Live)

.pck Pickfile (Turbo Pascal)

.pcl HP-PCL graphics data (HP Printer Control Language)

.pcp Bitmap graphics (PCP file)

.pcs Animated PICTs (Macintosh)

.pcs Picture package (MS PowerPoint - MS ClipArt Gallery)

.pct Bitmap graphics (Macintosh b&w PICT1 - color PICT2)

.pcw Text document (PC Write)

.pcx Bitmap graphics (ZSoft PC Paintbrush format)

.pda Bitmap graphics

.pdb Data (TACT - Packrat 5.0)

.pdf Database Interchange Format (PCAD)

.pdf Graphics file (ED-SCAN 24bit format)

.pdf Package definition file (download info) (Microsoft SMS)

.pdf Portable Document Format (Adobe Acrobat)

.pdf Print device information (Netware)

.pdg Data (Print Shop Deluxe)

.pdl Project Description Language file (Borland C++ 4.5)

.pds Pldasm language source code file (hardware assembly)

.pds Space mission data (Planetary Data System Format) (NASA)

.pdv Printer driver (Paintbrush)

.pdw Document (Professional Draw)

.pdx Printer description (PageMaker)

.peb Program Editor bottom overflow file (WordPerfect Library)

.ped Program Editor delete save (WordPerfect Library)

.pem Program Editor macro (WordPerfect Library)

.peq Program Editor print queue file (WordPerfect Library)

.per Program Editor resident area (WordPerfect Library) (vakioalue)

.pes Program Editor work space file (WordPerfect Library)

.pet Program Editor top overflow file (WordPerfect Library)

.pex Proboard EXecutable program file (Proboard)

.pfa Type 3 font file (unhinted PostScript font)

.pfb Type 1 PostScript font (Adobe Type Manager)

.pfc PF Component

.pfc Text file (First Choice)

.pfk Programmable function keys (XTreePro)

.pfl Portfolio (Lotus Freelance)

.pfm Printer Font Metrics (Windows Type 1 font metric file)

.pfs Database (PFS:FILE) - text file (PFS:Write)

.pft Printer font (ChiWriter)

.pg Page cut/paste file (IBM LinkWay)

.pgi Printer Graphics File device driver (PGRAPH library)

.pgl Vector graphics (HP Plotter)

.pgm Bitmap graphics (PBM graymap)

.pgm Program (Signature)

.pgp Encrypted file (Pretty Good Privacy)

.pgs Manual page (man4dos)

.ph Optimized .goh include file (Geoworks)

.ph Perl header file

.ph Phrase-table (MS C/C++)

.phd PolyHedra Database

.phm Phone book (DN - Lync)

.phn Phone list (UltraFax - QmodemPro)

.pho Phone database (Metz Phone for Windows)

.phr Phrases (LocoScript)

.pi1 Bitmap graphics (Atari Degas Image)

.pi2 Bitmap graphics (Atari Degas Image)

.pi3 Bitmap graphics (Atari Degas Image)

.pic Bitmap graphics (Macintosh) (b&w PICT1 - color PICT2)

.pic Bitmap graphics (PIXAR picture file)

.pic Bitmap graphics (Pictor page format) (many)

.picio Bitmap graphics (PIXAR picture file)

.pics Animated PICT files (Macintosh)

.pict Bitmap graphics (Apple Macintosh PICT file) (b&w PICT1 - color


.pict2 Bitmap graphics (Apple Macintosh PICT file)

.pid Process ID file (Unix)

.pif Graphics metafile (OS/2)

.pif Program Information File (Windows 3.x)

.pif Vector graphics GDF format (IBM mainframe computers)

.pim Pascal text mode image file (Ultimate Draw)

.pin Game data (Epic Pinball)

.pit Compressed Macintosh file archive (PackIt)

.pix Bitmap graphics (24bit RGB RLE) (Alias image file)

.pix Bitmap graphics (Inset Systems format)

.pixar Bitmap graphics (PIXAR picture file)

.pj Bitmap graphics (HP PaintJet PCL graphics file)

.pj Project (CA-SuperProject)

.pjt Additional (FPT) project description file (FoxPro)

.pjt Project (Visual C++)

.pjx Main (DBF) project description file (FoxPro)

.pjxl Bitmap graphics (HP PaintJet XL PCL graphics file)

.pk Packed bitmap font file (TeX DVI drivers)

.pka Compressed file archive (PKArc)

.pkg Installer script (Next)

.pkg Package (AppleLink - MS Developer Studio)

.pkg database (P-CAD)

.pkr Public Keyring (PGP)

.pkt Fidonet message packet

.pkt Readable contents of .pk (TeX font)

.pl Palette (Harvard Graphics)

.pl Perl script language source code file

.pl Prolog language source code file

.pl Property List font metric file (TeX)

.pl1 Room plan (3D Home Architect)

.pl3 Chart palette (Harvard Graphics 3.0)

.plb Library (FoxPro - P-CAD)

.plc Add-in file (functions - macros - applications) (Lotus 1-2-3)

.plc Database (P-CAD)

.plg Build log (MS Developer Studio)

.pll Prelinked library (CA Clipper)

.pln Spreadsheet (WordPerfect for Win)

.plot Vector graphics (Unix Plot(5) format)

.plt Palette

.plt Paper format (Page Magic 2.0)

.plt Pre-linked transfer file (Clipper 5)

.plt Software platform file (Geoworks Glue, EPOC)

.plt Table for .pll (CA Clipper)

.plt Vector graphics (HPGL plotter) (AutoCAD Plot)

.ply Data (PopMail)

.ply Presentation screen (Harvard Spotlight)

.ply ZipPack

.pm Bitmap graphics (8bit text) (X Window PixelMap)

.pm Bitmap graphics (Presentation Manager)

.pm Perl

.pm3 Document (PageMaker 3)

.pm4 Document (PageMaker 4)

.pm5 Document (PageMaker 5)

.pm6 Document (PageMaker 6)

.pma Data (Performance Monitor)

.pmc Data (Performance Monitor)

.pmc Graphics (A4TECH Scanner)

.pmi Program manager information (OS/2)

.pml Data (Performance Monitor)

.pmm Program file (Amaris BTX/2)

.pmr Data (Performance Monitor)

.pmw Data (Performance Monitor)

.pn3 Printer device driver (Harvard Graphics 3.0)

.pnf Bitmap graphics (Portable Network graphics Frame) (standalone


.pnf Precompiled setup information (Windows)

.png Bitmap graphics (Portable Network Graphics)

.pnm Bitmap graphics (PBM Portable aNyMap)

.pnt Bitmap graphics (Apple MacPaint format)

.pnt Pointlist segment (FTN software)

.pnt Qwk reader pointer file (MarkMail 2.x)

.pnt Vector point data (ARC format)

.pntg Bitmap graphics B&W (Apple Macintosh MacPaint file)

.poh Optimized .goh include file (Geoworks)

.pol Polygon Models Format (InnovMetric Software)

.poo String pool (INITeX)

.pop Messages index (PopMail)

.pop Pop-up menu object (dBASE Application Generator)

.pot Continuous potential image (Fractint)

.pot Template (MS PowerPoint)

.pov Raytraced graphics image (Persistance Of Vision)

.pow Instrument or song file (PowerChords)

.pp Compressed Amiga file archive (PowerPacker)

.pp4 Bitmap graphics (Picture Publisher 4)

.ppa Add-in (MS PowerPoint)

.ppb Button bar for Print Preview (WordPerfect for Win)

.ppd PostScript printer description file (PageMaker)

.ppk Archive (using for many distributives) (PPK)

.ppl Polaroidpaletteplus ColorKey device driver (Harvard Graphics 3.0)

.ppm Bitmap graphics (PBM Portable Pixel Map)

.ppo Preprocessor output (CA Clipper 5.x)

.ppp Publication (PagePlus)

.pps Slide show (MS PowerPoint)

.pps Storyboard (Personal Producer)

.ppt Presentation (MS PowerPoint)

.pr Bitmap graphics (Sun raster file)

.pr1 Data file (Packrat 4.0)

.pr2 Data file (Packrat 4.x)

.pr2 Presentation (Aldus Persuasion 2.x)

.pr2 Printer driver (dBASE IV)

.pr3 Postscript printer driver (dBASE IV)

.pr3 Presentation (Aldus Persuasion 3.x)

.prc Processes (Rational Rose)

.prd Printer driver (many)

.pre Bitmap graphics (CMYK image) (Stork format)

.pre Presentation (Lotus Freelance)

.pre Settings (Programmer's WorkBench - MS C/C++)

.prf Bitmap graphics (Pixel Run Format) (Improces - Fastgraph)

.prf Data file (CheckIt Pro 1.0)

.prf Printer driver (dBASE IV)

.prf Profiler output

.prg Program (Atari)

.prg Program source (dBASE IV - FoxPro - CA Clipper - dBFast)

.pri Printer definitions (LocoScript)

.prj Project

.prm Parameters

.prn Printer driver (Signature)

.prn Text file (Lotus 1-2-3 - Symphony)

.prn Usually printer output file

.pro Graphics profile file (DOS)

.pro Profile (configuration data)

.pro Prolog language source code file

.proj Project File (Interface Builder) (NeXT)

.prp Model properties (Rational Rose)

.prr The Perfect Resume data file (Perfect Resume)

.prs Presentation (Harvard Graphics Win)

.prs Printer Resource eg. fonts (WordPerfect for Win)

.prs Procedure (dBASE IV)

.prt Component (P-CAD)

.prt PTC Pro/ENGINEER part

.prt Printer driver (Dr.Halo)

.prvkr Private keyring (PGP)

.prx Compiled program (FoxPro)

.ps Adobe Postscript document (text/graphics)

.ps2 Adobe Level II Postscript document (text/graphics)

.psa Archive (Pretty Simple Archive) (GNU PSA.OUT)

.psd Bitmap graphics (Adobe Photoshop format)

.psd Definition file (Periscope Debugger)

.pse Bitmap graphics (IBM printer Page SEgment)

.pseg Bitmap graphics (IBM printer Page SEgment)

.psf Outline PostScript printer font (ChiWriter)

.psid Postscript image data (text/graphics) (ascii file)

.psm Music format (Protracker Studio Module) (Protracker - MASI)

.psm Symbol table of IDE (Turbo Pascal)

.psn Presentation file (Sound Script)

.psp Procedure (Prodea Synergy)

.pst Paste buffer (Lahey Fortran)

.pst Personal Folder File (Microsoft Outlook)

.pst Postbox file (BMail)

.pt Game crack (Player Tools)

.pt Kodak Precition Color Management System

.pt Sound (Pitch Track)

.pt3 Device driver (Harvard Graphics 3.0)

.pt3 Template (PageMaker 3)

.pt4 Template (PageMaker 4)

.pt5 Template (PageMaker 5)

.ptb Script (PubTech BatchWorks)

.ptl Petal (Rational Rose 98)

.ptm Macro (PubTech BatchWorks)

.ptm Music format

.ptm Template (Page Magic 2.0)

.ptr Cursor image file (OS/2 PTR file)

.ptr Qwk reader pointer file (QMail)

.ptu Performer Terrain Utilities

.ptx Bitmap graphics (Printronix graphics file)

.pty Properties (Rational Rose 98)

.pub Page template (MS Publisher)

.pub Public keyring (Pretty Good Privacy)

.pub Publication (PageMaker - Ventura Publisher - 1st Publisher)

.pubkr Public key ring (PGP)

.put Compressed file archive (PUT)

.put Graphics (WScan)

.puz Puzzle file (BrainsBreaker Puzzle)

.puzz Bitmap graphics (8bit) (X11 Puzzle)

.puzzleBitmap graphics (8bit) (X11 Puzzle)

.pv Analysis data (Phase Vocorder)

.pvd Script (Instalit)

.pvl Library (Instalit)

.pvt Local Fidonet pointlist (FTN software)

.pvu Paleoenvironmental data (PaleoVu)

.pw Text document (Professional Write)

.pwd Text document (Microsoft Pocket Word)

.pwl Password List

.pwp Text document (Professional WritePlus)

.pwz Wizard (MS PowerPoint)

.px Primary database index (Paradox)

.pxl Pixel data (TeX driver)

.pxl Script (PiXCLscript)

.pxl Spreadsheet (Microsoft Pocket Excel)

.pxp Process file (3D Studio)

.pxr Bitmap graphics (Pixar image) (Photoshop)

.py Python script file

.pyc Compiled Python script file

.pzd Default settings (Pizazz Plus)

.pzi Graphics (Pizazz Plus)

.pzl Bitmap graphics (8bit) (Unix Puzzle)

.pzo Overlay (Pizazz Plus)

.pzp Palette (Pizazz Plus)

.pzs Settings (Pizazz Plus)

.pzt Transfer file (Pizazz Plus)

.pzx Swap file (Pizazz Plus)


.q Win95 fax queue

.q0 Bitmap graphics (24bit) (Japanese Q0 image format)

.qad Document (PF QuickArt)

.qag Quick Access Group (Norton Desktop)

.qap Application (Omnis Quartz)

.qbe Saved query (Query By Example) (dBASE IV - Quattro Pro)

.qbo Compiled query (dBASE IV)

.qbw Spreadsheet (QuickBooks for Windows)

.qcp Digitally encoded voice (Qualcomm QCELP recoder and player)

.qd0 Data file - segment 10 (Omnis Quartz)

.qd1 Data file - segment 1 (Omnis Quartz)

.qd2 Data file - segment 2 (Omnis Quartz)

.qd3 Data file - segment 3 (Omnis Quartz)

.qd3 QuickDraw 3D Metafile (QuickDraw)

.qd3dQuickDraw 3D Metafile (QuickDraw)

.qd4 Data file - segment 4 (Omnis Quartz)

.qd5 Data file - segment 5 (Omnis Quartz)

.qd6 Data file - segment 6 (Omnis Quartz)

.qd7 Data file - segment 7 (Omnis Quartz)

.qd8 Data file - segment 8 (Omnis Quartz)

.qd9 Data file - segment 9 (Omnis Quartz)

.qdk Backup of startup files created by Optimize (QEMM)

.qdv Bitmap graphics (8bit) (Random Dot QDV file)

.qef Query file (Q+E for MS Excel)

.qfc Compressed file archive

.qfx Fax (QuickLink)

.qic Backup set (MS Backup)

.qlb Quick library (BASIC PDS - MS C/C++)

.qlc ATM Type 1 fonts script (Adobe Type Manager)

.qlp Printer driver (QuickLink)

.qm4 Options or services file (QMail 4.x Mail Door)

.qpr Generated query program (FoxPro)

.qpr Print queue device driver (OS/2)

.qpx Compiled executable QBE query file (FoxPro)

.qrs Equation Editor support file (WordPerfect for Win)

.qrt Bitmap graphics (24bit) (QRT Raytracer)

.qry Query (dBASE IV)

.qsn QuickScan data (TapCIS)

.qt QuickTime movie (animation)

.qtc QuickTime Conferencing

.qtk Bitmap graphics (QuickTake digital camera)

.qtv Movie (QuickTime Virtual Reality)

.qtvrMovie (QuickTime Virtual Reality)

.que Queue object (Scheduler)

.qwk Qwk reader message file

.qxd Document (QuarkXPress)

.qxl Element library (QuarkXPress)

.qxt Template (QuarkXPress)


.r Ratfor file (FORTRAN preprosessor)

.r2d Data file (Reflex 2)

.r8 Raw graphics (one byte per pixel) plane one (PicLab)

.r8 Red channel image data (24bit 3D animation) (Cubicomp PictureMaker)

.r8p Pcl 4 bitmap font file (Intellifont)

.ra Audio file (RealAudio)

.ra Data file (Remote Access)

.rad 2-op FM music (Reality AdLib Tracker)

.rad Radience

.ram RealAudio Metafile (RealAudio)

.rar Compressed file archive (RAR)

.ras Bitmap graphics (Sun raster image)

.rastBitmap graphics (Sun raster image)

.rat Datafile (RATS)

.raw Bitmap graphics (Raw 24-bit RGB)

.raw Sound (Raw sound data) (PCM)

.ray Rayshade

.rbf Datafile (Rbase)

.rc Configuration record (Emacs)

.rc Resource script (MS C/C++ - Borland C++ - Resource WorkShop)

.rc2 Not editable resources (MS Developer Studio)

.rcg Netscape newsgroup file (netsc.rcg)

.rct Resource template (MS Developer Studio)

.rd3 Graphics (Ray Dream Designer 3)

.rdefUI resource file (old) (Geoworks)

.rdf Compiled UIC source code (Geoworks UI Compiler)

.rdi Device-independent bitmap file (RIFF RDIB format)

.rdx Datafile (Reflex)

.rec Archivation protocol (ARCSERVE)

.rec Datafile (EpiInfo)

.rec Macro (Windows Recorder)

.rec Record (Sprint)

.red Path info (Clarion Modula-2)

.ref Cross-reference

.reg Registration information or key

.rem Remarks

.rep Reply file (Qwk reader)

.rep Report file

.req Request

.res Compiled resource (MS C/C++ - Borland C++)

.res Resign conferences file (XBoard)

.res Resource

.rev Revision file (Geoworks)

.rex Executable file (old format) (PharLab)

.rex Report definition (Oracle)

.rex Rexx language source code file (Rexx)

.rez Resource file

.rf Bitmap graphics (Raster file)

.rfm Rich music format

.rft DCA/RFT Revisable Format Text file (IBM DisplayWrite 4.0-5.1)

.rg Bitmap graphics (1bit B&W 4bit CMYK) (Raster Graphics format)

.rgb Bitmap graphics (Raw 24bit Red-Green-Blue) (many)

.rgx Symbol tables etc. info (ReaGeniX code generator)

.rh Resource header (Borland C++, Visual C++)

.ri Data (Lotus 1-2-3)

.rib Graphics (Renderman Interface Bytestream) (3D Reality)

.ric Fax (Ricoh)

.rif Bitmap graphics (Resource Interchange File Format)

.riffBitmap graphics (Resource Interchange File Format)

.rip Graphics (Remote Access)

.rip Program crash report (Quincy)

.rip Telegrafx Remote Imaging Protocol (Maximus 3.0)

.rix Bitmap graphics (RIX Softworks Paint Tool ColoRIX file)

.rkv Compressed file archive (RKIVE)

.rl4 Bitmap graphics

.rl8 Bitmap graphics

.rla Bitmap graphics (Wavefront raster image file)

.rlb Bitmap graphics (Wavefront raster image file)

.rlb Data (Harvard Graphics Win)

.rlc Bitmap graphics (Run Length RLC file)

.rld Temporary file (Norton Commander 5.0)

.rle Bitmap graphics (Utah Run-Length Encoded image file)

.rlz Realizer source code file (CA-Realizer)

.rm Audio file (RealAudio)

.rmf Rich Music Format (Beatnik)

.rmi Midi music (RIFF RMID format)

.rmk Makefile (CA Clipper RMake)

.rmp Audio file (RealAudio)

.rn Xpl program (Nota Bene)

.rnd Rendering Slide (AutoCAD AutoShade)

.rng Ringing tone (Nokia Communicator)

.rnk Diap-up shortcut

.rno Runoff file (VAX)

.roffUnformatted manual page (Roff/nroff/troff/groff)

.rol Roland music file (Adlib)

.rom Read Only Memory image (emulators - AONs)

.rot 3D image (Rotater)

.rov Game data (Rescure Rover)

.rpb Data report file (CP Backup)

.rpd Database (RapidFile)

.rpf Pattern (AutoCAD)

.rpl Document (Replica)

.rpl Reply message

.rpl Text document (Replica)

.rpm Plugin (RealAudio)

.rpt Report

.rs Data file (Amiga Resource - Reassembler)

.rs_ Resource fork of a Macintosh file (Mac-ette)

.rsc Compiled resource(s)

.rsg Compiled resource header (EPOC)

.rsl Resource Library (PC Tools Win)

.rsp Response file


.rss Resource source file (EPOC)

.rt Rich text

.rtf Text document (Rich Text Format) (many)

.rtfdRTF-Packet (NeXT)

.rtl Bitmap graphics (HP Raster Transfer Language) (HP colour printers)

.rtl Run-Time library (Norton Utilities)

.rtl Text file

.rtp Software update file (.RTPatch)

.rts Runtime library (CA-Realizer)

.rtx Text document (MIME Richtext format)

.rul Rules (Echo-conference)

.run Batch file (PC Tools)

.rus Russian text

.rvw Review

.rws Resource Workshop Symbol file (Borland C++)

.rwx MEME Shape File

.rwx Script (Criterion RenderWare)

.rxd Datafile (Reflex 1)


.s Assembly language source code file.s (Unix)

.s Foreign assembly source file (Modula-3)

.s Macro source file (MultiEdit)

.s Scheme language source code file

.s$$ Temporary sort file (Sprint)

.s1k S1000 Simnet Format

.s3i Sample file (Digiplayer - ST3)

.s3m Music (16 channels) (Scream Tracker III)

.saf Spatial Archive Interchange Format

.saif Spatial Archive Interchange Format

.sal Datafile (SORITEC)

.sam Text file (Samna - Lotus Ami/Ami Pro)

.sar Compressed file archive (SAR)

.sas SAS source code file (VMS)

.sav Saved backup or configuration data

.sav Saved game situation (eg. NetHack)

.sb Audio file (signed byte)

.sbd Data file (Storyboard Editor)

.sbi Sound Blaster Instrument (Creative Labs)

.sbk Emu SoundFont Bank (AWE32 Bank) (Convert (c) Villena)

.sbk Toolbook (Asymetrix ToolBook)

.sbl library (Stonu Brook Pascal)

.sbp Dml program (Superbase 4)

.sbr Support file (Source Browser)

.sbt Notes related to record (Suberbase 4 Windows)

.sc Display driver (Framework II)

.sc PAL script (Paradox)

.sc2 Document (MS Schedule+ 7.x)

.sc3 Renamed dBASE III screen mask file (dBASE IV)

.sc3 Screen device driver (Harvard Graphics 3.x)

.sca Datafile (SCA)

.scan Bitmap graphics (Thunderscan image file)

.scc Bitmap graphics (MSX picture)

.scd Bitmap graphics (SCODL Scan Conversion Object Description


.scd Contacts (MS Schedule+ 7.x)

.scf Multimedia show (ScoreMaker)

.scf Shell Command File (Windows Explorer)

.scf Spelling checker configuration (Symphony)

.scg Bitmap graphics (ColoRIX)

.sch Project schedule (Schedule Publisher - MS Schedule+ 7.x)

.sch Scheme (P CAD - Orcad)

.sci Bitmap graphics (Scitex Continuous Tone (CT2T) image file)

.sci Fax (SciFax)

.sci System Configuration Information

.scm Movie (Lotus ScreenCam)

.scm Scheme language source code file

.scn SCeNe RTrace

.scn Screen dump or file (Kermit)

.sco Score (best results)

.scodl Bitmap graphics (Agfa slide file)

.scp Bitmap graphics (ColoRIX)

.scp Script (BITCOM)

.scr Bitmap graphics (ColoRIX or Sun rasterfile)

.scr Debug source code file (DOS Debug)

.scr Fax image

.scr Screen (source) file (Forth)

.scr Screen font (LocoScript)

.scr Screen saver (Windows 3.x)

.scr Screen snapshop (Microsoft Screen Capture format)

.scr Script (1st Reader - Kermit - TeleMate - AutoCAD)

.sct Additional (FPT) screen description file (FoxPro)

.sct Bitmap graphics (Scitex CT bitmap)

.scu Bitmap graphics (ColoRIX)

.scx Chart (Stanford Chart)

.scx Graphics bitmap (ColoRIX)

.scx Main (DBF) screen description file (FoxPro)

.scy Security file (ReaGeniX)

.scz Data (Wingz)

.sd Sound (Entropic Sound Data format)

.sda Software Distribution Network file archive description

.sdf Source definition file (Sourcer)

.sdf System Data Format file (fixed lenght ascii text)

.sdi Software Distribution Network Info file

.sdk Roland S-550/S-50/W-30 Disk Image

.sdl Parsys hardware network description file

.sdl Scene Description Language (Alias Wavefront)

.sdl SmartDraw library

.sdml Spacial Data Modeling Language

.sdn Software Distribution Network compressd file archive (pak251.exe)

.sdr Music (Sounder)

.sdr SmartDraw drawing

.sds MIDI Sample DUMP Standard File

.sdt SmartDraw template

.sdts Spatial Data Transfer Standard

.sdw Vector graphics (Ami Draw)

.sdx Sample DUMP Exchange File

.sea Self-extracting compressed Macintosh file archive (Compact Pro)

.sec Diskreet encrypted file (Diskreet)

.sec Secret key ring file (Pretty Good Privacy)

.sec Secured animation file (Disney Animation Studio)

.sep Printer separator page

.seq Animation file (Atari)

.seq Sequential Instruction File (Bubble Chamber)

.ses Session info (Clarion Modula-2)

.set Configuration (1st Reader)

.set Driver sets created by Install (Symphony)

.set Setup data or info

.sf IRCAM Sound File (CSound package - MixView sound sample editor)

.sf WPS attribute storage (OS/2 WorkPlace Shell)

.sfb HP Soft font

.sff Scene File Format

.sfi Graphics (SIS Framegrabber)

.sfi Printer font (HP LaserJet landscape) (Ventura Publisher)

.sfl PCL 4 bitmap font (landscape) (Intellifont - Ventura Publisher)

.sfn Font (SPX)

.sfo Bitstream font file - fontware format

.sfp Pcl 4 bitmap font (portrait) (Intellifont) (Ventura Publisher)

.sfs Pcl 5 scalable font file (Intellifont)

.sft Screen font (ChiWriter)

.sfw Graphics (Seattle Film Works)

.sfx Self-extracting file archive script (RAR)

.sg1 Graphics (Stanford Graphics)

.sgd Help file (Lahey Blackbeard)

.sgf Document with graphics (Starwriter)

.sgi Bitmap graphics (Silicon Graphics Image)

.sgm IETF SGML document (Standard Generalized Markup Language)

.sgml IETF SGML document (Standard Generalized Markup Language)

.sgp Statistics (STATGRAPHICS Plus)

.sgt Save/get keyboard macro (Signature)

.sgx Help file index (Lahey Fortran)

.sh Shell script (unix) (ascii) (SHAR)

.sh3 Presentation (Harvard Graphics 3.0)

.shar Shell Archive (Unix) (script)

.shb Background (CorelShow)

.shb Presentation (Corel Show)

.shb Shortcut into a document (Windows 95)

.shd Spool file (Windows95)

.shg Bitmap graphics (Segmented HyperGraph)

.shk Compressed Apple II file archive (ShrinkIt)

.shm Shell macro (WordPerfect Library)

.shp Icon library (Printmaster)

.shp Shape file and source file for text fonts (AutoCAD)

.shr Unix Shell ARchive (ascii) (SHAR)

.shs Shell scrap object (Windows 95)

.shtml HTML with server side includes

.shw Presentation (Harvard Graphics - CorelShow)

.shx Shape entities (AutoCAD)

.si Graphics (SoftImage)

.sid C64 tunes and sound effects file (PlaySID)

.sif Setup Installation File

.sif Vector data (ISIF format)

.sig Current program settings (Signature)

.sig Signature file (ThunderByte AntiVirus - PopMail - PGP)

.sik Backup file (Sicherungskopie) (MS Word)

.sim SIMPLE script source (Telix)

.sir Bitmap graphics (Solitaire file)

.sis Software installation file (Psion)

.sit Compressed Macintosh file archive (UnStuff)

.six Bitmap graphics (DEC LN03+ Sixel file)

.sixel Bitmap graphics (DEC LN03+ Sixel file)

.skcardDatafile (Starfish SideKick)

.skr Private (secret) keyring (PGP)

.sky SYLK Spreadsheet file (Multiplan)

.sl S-Lang language source code file

.slb Slide library (AutoCAD)

.slb Symbols library (P-CAD)

.slc Compiled SALT script (Telix)

.sld Slide (AutoCAD)

.sli Slide (MAGICorp Slide Service)

.slk Data format (Sylk Symbolic Link format)(Excel - MultiPlan)

.sll Sound file

.slt Salt Script Application Language script source (Telix)

.sm Maillist (SoftSpoken Mailer)

.sm Script (ScriptMaker)

.sm Smalltalk language source code file

.sm Text document (Samna Word)

.smf Fax (SMARTFAX)

.smm Macro (Ami Pro)

.smn Font (ParaGraph's WorkScript format)

.smp Sound (SaMPleVision)

.smt Text file (Smart Ware II)

.sn Compressed song file (Sound Club editor)

.snd Sound file (Sun/NeXT/Tandy/Apple Macintosh Sound file formats)

.sng Song (midi sound) (Midisoft Studio - Prism)

.sno Snobol4 language source code file

.snp Book-shelf for .BOO (READIBM)

.snp Output video format from Computer Eyes equipment

.so Shared object (Fortran 90)

.sol MATRA prelude solids

.sol Solution eg. game walkthroughs

.som Network serial numbers (Quattro Pro)

.som Sort information (Paradox)

.son Song (SBStudio II)

.sou Sound data (SBStudio II)

.sp Compressed file archive (Splint)

.spc Bitmap graphics (Atari compressed Spectrum file)

.spc Program (MS Multiplan)

.spc Temporary file (WordPerfect for Win)

.spc Text to speech

.spd Scalable font (Speedo) (Harvard Graphics 3.0)

.spf Slide presentation file (EnerGraphics)

.spg Glossary (Sprint)

.sph Sphere

.spiff Graphics (Still Picture Interchange File Format)

.spk Compressed file archive (Spark) (Acorn)

.spl Compressed file archive (Splint)

.spl Customized printer driver (Sprint)

.spl Personal spell dictionary (Signature)

.spl Sample

.spl Splash (Macromedia)

.spl Spool file (Windows 3.x printing)

.spm Data (WordPerfect)

.spot Bitmap graphics (SPOT satellite image file)

.spp Printer file (Sprint)

.spr Animation (Sizzler)

.spr Document letter (Sprint)

.spr Generated executable screen file (FoxPro)

.spr Spreadsheet (Psion Series 3)

.spr Sprite (graphics image) (many - Story Board)

.spriteAnimation (Sizzler)

.sps SPSS language source code file (VAX/VMS)

.sps Screen driver (Sprint)

.spt Data support file (MITAC disk/system management utility pack)

.spt Spitbol language source code file

.spt Split (one part of multi-part file)

.spt Support file (MITAC disk/system management utility pack)

.spu Bitmap graphics (Atari compressed Spectrum file)

.spw Worksheet (SigmaPlot)

.spx Compiled executable screen file (FoxPro)

.spx Screensaver (Screen Peace) (Windows)

.sqd Squish message base (Squish)

.sqi Squish message base index (Squish)

.sql SQL report or query

.sql Squish message base last read pointers (Squish)

.sqz Compressed file archive (Squeeze)

.sr Bitmap graphics (Sun Rasterfile)

.src Source (DataFlex, Multi-Edit)

.srf Bitmap graphics (Sun Raster File)

.srp Script (QuickLink)

.ss Bitmap graphics (Splash)

.ss Screen saver (DN)

.ssd Datafile (SAS/PC)

.ssh Secure Shell document (DataFellows)

.ssi HTML with server side includes

.ssp Datafile (SAS Transport)

.ssq ODBC script

.sst Satellite image data (AVHRR file) (IDIDAS - SSTMAP - IMGMAP)

.st Instrument library (Scream Tracker)

.st Smalltalk language source code file (Little Smalltalk)

.st Stamp (NeoPaint)

.sta Data file (Statistica)

.sta Saved state (Reflection 4.0)

.sta Stack (Spinmaker Plus)

.stb Stub library (Genus GX Kernel)

.std Standard (something..) (LocoScript)

.std State Transition Diagram graphics file (Prosa)

.step ISO-10303 STEP product data

.stf Compressed file archive (ShrinkToFit)

.stl Stereolithography Interface Format

.stm Music (4 channels) (Scream Tracker II)

.stm State Transition Diagram model file (Prosa)

.sto Pascal stub OBJ file (Genus GX Kernel)

.stp ISO-10303 STEP product data

.str Gate3 table structure file

.str Structure list object file (dBASE Application Generator)

.sts Project status info (MS C/C++)

.sts Song format (Scream Tracker)

.stw Data file (SmartTerm for Windows)

.stx Electronic book (SmarText)

.stx Music format

.stx Tax form (CA-Simply Tax)

.sty Style library or sheet (many text and graphics programs)

.sub Component package (Rational Rose)

.sui Suit library (Simple User Interface Toolkit)

.sum Summary

.sun Raster graphics (Sun Rasterfile)

.suniffBitmap graphics (Sun TAAC Image File Format)

.sup Bitmap graphics (Startup screen)

.sup Supplementary dictionary (WordPerfect for Win)

.svd Document autosave file (MS Word)

.svf Vector graphics (Simple Vector Format) (CAD programs)

.svg Glossary autosave file (MS Word)

.svq Music file

.svr Virtual world (compressed) (WWW)

.svs Style sheet autosave file (MS Word)

.svx Sound (Amiga 8SVX format)

.sw Audio file (signed word)

.swa Music (MPEG-1 Layer III with special header) (Macromedia


.swf Flash (Macromedia)

.swg SWAG Pascal Snippets file (SWAG Reader)

.swp Document backup (Sprint)

.swp Swap file

.sxp Process file (3D Studio)

.sy1 Smartpix symbol library (Ami Pro)

.sy3 Symbol file (Harvard Graphics 3.x)

.syd Backup (QEMM - Sysedit)

.syk SYLK spreadsheet format (Excel)

.sylk SYLK spreadsheet format (Excel)

.sym Component symbols (P-CAD)

.sym Graphics symbols (Harvard Graphics 2.0 - MS Windows SDK)

.sym Precompiled headers (Borland C++)

.sym Program symbol table (many compilers and linkers)

.syn Bitmap graphics (SDSC Synu image file)

.syn Synonym file (MS Word 5)

.synu Bitmap graphics (SDSC Synu image file)

.sys Datafile (SYGRAPH - SYSTAT - SPSS/PC)

.sys System file - device driver or hardware configuration info (DOS)

.syw Graphics symbols (Harvard Graphics Win)

.syw Yamaha SY-85/SY-99 Wave File


.t Tads source

.t Tape Archive without compression (tar)

.t Tester symbol table (ReaGeniX code generator)

.t Unformatted manual page (Roff/nroff/troff/groff)

.t44 Temporary file for Sort or Index (dBASE IV)

.t64 Commodore 64 emulator tape file (C64S emulator)

.t65 Template (PageMaker)

.taac Bitmap graphics (Sun TAAC Image File Format)

.tab Colour lookup table (CMYK image) (Stork format)

.tag Query tag name (DataFlex)

.tah Help file (Turbo Assembler)

.tal Text illustration (TypeAlign)

.talk Text to speech

.tap Tape file (ZX Spectrum emulator by g.a.lunter)

.tar Compressed file archive (tar)

.targaBitmap graphics (Truevision Targa format)

.taz Compressed file.tar.Z archive (ascii) (tar and compress)

.tb1 Font file (Borland Turbo C)

.tb2 Font file (Borland Turbo C)

.tbf Fax (Imavox TurboFax)

.tbk Memo backup (dBASE IV - FoxPro)

.tbk Toolbook (Asymetrix ToolBook)

.tbl Dynamic Link library

.tbl Table

.tbr Custom toolbar (Norton Desktop)

.tbs Text elements (Textbausteine) (German MS Word)

.tbx Table (Project Scheduler 4)

.tc Configuration (Turbo C - Borland C++)

.tc Termcap

.tch Help file (Turbo C - Borland C++)

.tcl Tcl (Tool Command Language) script source code

.tco T9000 object modules

.tcw Drawing (TurboCAD for Windows)

.td Configuration file (Turbo Debugger for DOS)

.td0 Disk image (compressed diskette in a file) (Teledisk)

.td2 Configuration file (Turbo Debugger for Win32)

.tdb Database (TACT)

.tddd Imagine Object File Format

.tdf Font (TheDraw)

.tdf Typeface definition file (Speedo)

.tdh Help file (Turbo Debugger)

.tdi Animation (TDI image file)

.tdk Keystroke recording file (Turbo Debugger)

.tdr Contens of Arvid tape

.tds Symbol table (Turbo Debugger)

.tdw Configuration file (Turbo Debugger for Windows)

.tdw Debugger symbol table (Borland C++ Builder)

.tef Fax (Relisys TEFAX)

.tel Host file (Telnet)

.tem Input template (IconAuthor)

.tem Turbo Editor Macro Language script (Borland C++)

.tet Tetris results (DN)

.tex Datasheet (Idealist)

.tex Text document (TeX Device Independent File Format) (Scientific


.tex Texture file (possible graphics)

.text Text file

.tf Configuration (Turbo Profiler)

.tf MUD client macro (TinyFugue)

.tfa Area file (Turbo Profiler)

.tfc Catalogue file (Tobi's Floppy Cataloguer)

.tfh Help file (Turbo Profiler)

.tfm Tagged font metric file (Intellifont - TeX)

.tfs Statistical information (Turbo Profiler)

.tg Technical Guidance (NRC Inspection Manual)

.tg1 Project file (On Target)

.tga Bitmap graphics (Truevision Targa format)

.tgz Compressed file archive.tar.gz (tar and GNUzip)

.themeDesktop theme (Windows 95)

.thm Bitmap graphics (Picture Publisher - PhotoMagic Thumbnail)

.thn Thumbnail (Graphics Workshop for Windows)

.thor Database description (THOR database)

.ths Thesaurus dictionary (WordPerfect for Win)

.ti Temporary Instruction (NRC Inspection Manual)

.tic FTN special file with assotiated file description (ALLFIX)

.tif Bitmap graphics (Tagged Image File Format) (PageMaker - CorelDraw)

.tiff Bitmap graphics (Tagged Image File Format) (PageMaker - CorelDraw)

.tig Tiger file (US government distributed maps)

.til Fuzzy logic knowledge base (Togai InfraLogic Fuzzy-C Compiler)

.tis Tile set (MahJongg 3.0)

.tjl Backup file (VAXTPU editor)

.tlb OLE Type library (Visual C++)

.tlb Reference table (Bubble Chamber)

.tlb Text library (VAX)

.tlc Compiled Tool Command Language source code (Geoworks Swat)

.tld Disk Image (Teledisk)

.tlp Project (TimeLine)

.tm Bitmap graphics (EOSAT's Landsat Thematic Mapper data file)

.tmf Tagged Font Metric file (WordPerfect for Win)

.tmo Ztg global optimizer default output file (Zortech C++)

.tmp Temporary file

.tms Script (Telemate)

.tms TeleMate compiled script (TeleMate)

.tny Bitmap graphics (Atari TINY Bitmap)

.toc Table Of Contents (index file)

.tok External tokens (Borland C++ 4.x)

.tos Self-extracting file archive (Atari ST)

.tp Configuration (Turbo Pascal)

.tp Session-state file (Turbo Profiler)

.tp3 Template (Harvard Graphics 3.0)

.tpb Downloadable PCL Soft font file backup (HiJaak)

.tpf Downloadable PCL Soft font file (HiJaak)

.tph Help file (Turbo Pascal)

.tpl Resident units library (Turbo Pascal)

.tpl Template (Harvard Graphics - GoldEd -ITrack)

.tpp Protected Mode Units (Borland Pascal 7.0)

.tpu Command file (VAXTPU editor)

.tpu Pascal Unit (DOS library) (Borland Pascal)

.tpw Pascal Unit (Windows library) (Borland Pascal)

.tpw Session-state file (Turbo Profiler for Windows)

.tpz Compressed file archive.tar.gz (tar and GNUzip)

.tr Session-state settings (Turbo Debugger for DOS)

.tr Unformatted manual page (Roff/nroff/troff/groff)

.tr2 Session-state settings (Turbo Debugger for Win32)

.trc Debug support file (Power CTrace)

.tre Directory tree file (PC-Tools)

.trif Bitmap graphics (Tiled Raster Interchange Format)

.trk Track (i.e. video sequence) used by many games

.trm Terminal settings (Windows 3.x)

.trn Translation support file (Quattro - Clarion)

.trs Executable file (Micrografx)

.tru True Basic language source code file

.trw Session-state settings (Turbo Debugger for Windows)

.tsm Manual (Turbo Assembler for OS/2)

.tsq ODBC script

.tst Printer test file (WordPerfect for Win)

.tsv Tab Separated Values

.ttf Truetype Font (font file)

.tud Document (The Ultimate Draw)

.tut Tutorial

.tv Table view settings (Paradox)

.tv1 Overflow file above insert point in Doc 1 (WordPerfect for Win)

.tv2 Overflow file above insert point in Doc 2 (WordPerfect for Win)

.tv3 Overflow file above insert point in Doc 3 (WordPerfect for Win)

.tv4 Overflow file above insert point in Doc 4 (WordPerfect for Win)

.tv5 Overflow file above insert point in Doc 5 (WordPerfect for Win)

.tv6 Overflow file above insert point in Doc 6 (WordPerfect for Win)

.tv7 Overflow file above insert point in Doc 7 (WordPerfect for Win)

.tv8 Overflow file above insert point in Doc 8 (WordPerfect for Win)

.tv9 Overflow file above insert point in Doc 9 (WordPerfect for Win)

.tvf Table view settings (dBASE)

.twf Data (TabWorks)

.tww Tagwrite Template

.tx8 8-bit ASCII text

.txf Compressed file archive.tar.f (tar and Freeze)

.txi Support file (TeX)

.txt Plain text (ASCII or ISO Latin 1 format)

.txw Yamaha TX-16W Wave File (Convert (c) Villena)

.tym Time Stamp (PageMaker 4)

.tz Compressed file archive.tar.Z (tar and compress)

.tzb Compressed file archive.tar.Z.btoa (tar - compress - btoa)


.u Bitmap graphics (subsampled raw YUV file)

.u4a UnInstaller archive

.u8 Sample

.ub Music file (unsigned byte)

.uc2 Compressed file archive (UltraCompressor II)

.ucd Use case diagram (Prosa/OM)

.ucn New compressed file archive (UltraCompressor II)

.udf Filter (Photostyler)

.udf Uniqueness Database File (Windows NT)

.ue2 Encrypted file archive (UltraCompressor II)

.ufa Compressed file archive (UFA)

.ufo Ulead File for Objects (Ulead PhotoImpact)

.uhs Universal Hint System (binary file)

.ui Espire language source code file (Geoworks UI Compiler)

.ui User interface (Sprint)

.uif Long prompts for windows (WordPerfect for Win)

.uih Espire header file (Geoworks UI Compiler)

.uil Bitmap graphics (Motif UIL icon file)

.ul Music file (Ulaw)

.uld Uploaded file information (Procomm Plus)

.ult Music (UltraTracker)

.umb Backup file (MemMaker)

.und Undefined symbols (A86)

.uni Datafile (Forecast Pro)

.uni Music (UniMOD - MikMOD)

.unv SDRC I-DEAS file

.unx Text file containing UNIX specific info

.upd Update info

.upf Bitmap graphics (Universal Picture Format)

.upo Compiled update data (dBASE)

.uri List of Uniform Resource Identifiers (WWW)

.uris List of Uniform Resource Identifiers (WWW)

.url Internet shortcut (Universal Resource Locator)

.urt Bitmap graphics (Utah Run-Length Encoded image file)

.use Log file

.usp Printer font with US Ascii extended character set (PageMaker)

.usr User database (Procomm Plus - Turbo C++ tour)

.ustarCompressed file archive (POSIX tar)

.uu Encoded file archive (ascii) (uudecode - uuencode)

.uud Encoded file archive (ascii) (uuencode)

.uue Encoded file archive (ascii) (uuencode)

.uw Music file (unsigned word)

.uwf Music file (UltraTracker WaveSample)


.v Bitmap graphics (subsampled raw YUV file)

.v Consistency check support file (ReaGeniX code generator)

.v Main input file for an image (Vivid 2.0)

.val Validity checks and referential integrity (Paradox for Windows)

.val Values list object file (dBASE Application Generator)

.van Animation (VistaPro)

.vap Value Added Process (NetWare 2.xx)

.var Variable file (IconAuthor)

.vbp Visual Basic Project

.vbr Visual Basic Custom Control file (Visual Basic)

.vbx Visual Basic eXtension (custom control)

.vbz Visual Basic Setup Wizard Template (Setup Wizard)

.vc Include file with color definitions (Vivid 2.0)

.vc Spreadsheet (VisiCalc)

.vca Visual Clip Art

.vcf Vevi Configuration File (WorldToolKit objects)

.vcr VCR driver (Arvid)

.vcs Calendar data (Netscape Calendar)

.vcw Visual workbench information (MS Visual C++)

.vcx Spreadsheet (VisiCalc Advanced)

.vda Bitmap graphics (Truevision Targa format)

.vda Graphics (VDA-FS surface data)

.vdi Bitmap graphics (Digital Research GEM VDI file)

.vdo Video image (Story Board)

.vdr Drawing (ComputerEasy Draw)

.veh Vector data (SPANS VEH/VEC format)

.vew GroupWise for Windows

.vew View file (Clipper 5 - Lotus Approach)

.vfa Database file (FontLab)

.vff Bitmap graphics (DESR VFF Greyscale Image)

.vff Bitmap graphics (Sun TAAC Image File Format)

.vfm Ventura Font Metrics file (Ventura Publisher)

.vfm Voting Form (Voter)

.vfn Voting Form for Customers (Voter)

.vga Bitmap graphics (OS/2 bitmap)

.vga Vga display font

.vgd Vga display driver (Generic CADD)

.vgr Graphics (Ventura Publisher)

.vi Bitmap graphics (Jovian Logic VI video capture board)

.vi Script (Watcom Vi editor)

.vic Graphics (VICAR - Video Image Communication and Retrieval)

.vicarGraphics (VICAR - Video Image Communication and Retrieval)

.vid Bitmap graphics (YUV12C M-Motion Frame Buffer file)

.vid Screen device driver (MSDOS - Word)

.vif Bitmap graphics (1bit CCITT Group 4) (Verity Image Format) (Topic)

.vif Bitmap graphics (Khoros Visualization Image File Format)

.viff Bitmap graphics (Khoros Visualization Image File Format)

.vik Graphics (Viking)

.vir Virus or infected file

.vis Graphics (Vista)

.vit Bitmap graphics (VITec file)

.vlb Corel Ventura Library

.vlm Virtual Loadable Module (Netware)

.vm Virtual Memory file (or localization file) (Geoworks)

.vmc Virtual memory configuration (DOS/4GW PM 32X DOS Extender)

.vmf Font characteristics (Ventura Publisher)

.vms Text file containing VMS specific info

.vo Include file with object definition (Vivid 2.0)

.voc Sound (Creative Lab's Sound File) (PlayVoc)

.vof Object folder (VZ Programmer)

.vort Bitmap graphics (Very Ordinary Rendering Toolkit)

.vp Publication (Ventura Publisher)

.vp Video posting (3D Studio)

.vpf Vector Product Format

.vpg Graphics (VPGraphics)

.vph Virtual Pascal Help (VP/OS2)

.vpi Virtual Pascal Unit (VP/OS2)

.vpr Resource (Visual Prolog)

.vrm Overlay file (QuattroPro)

.vrm Virtual Reality Modeling Language (WWW)

.vrm Visual Rexx language source code file (Watcom VRexx)

.vrml Virtual Reality Modeling Language (WWW)

.vrp Project (WATCOM VXRexx)

.vrs Video Resource (device driver) (WordPerfect)

.vrt Virtual world (WWW)

.vs Include file with surface definition (Vivid 2.0)

.vsd Drawing (Visio)

.vsm Simulation model (VisSim)

.vsp Sprite (SPX)

.vss Smartshapes file (Visio)

.vst Bitmap graphics (Truevision Vista)

.vst Template (Visio)

.vsw Data (Visio Workspace)

.vue Animation (3D Studio)

.vue View (dBASE IV - FoxPro)

.vw Text file (Volkswriter)

.vwr File viewer file (PC Tools)

.vxd Virtual device driver (MS Windows)


.w Word chart file (APPLAUSE)

.w30 Printer font (AST TurboLaser) (Ventura Publisher)

.w31 Startup file (Windows 3.1)

.w44 Temporary file for Sort or Index (dBASE)

.w51 Document (WordPerfect 5.1)

.w60 Document (WordPerfect 6.0)

.w61 Document (WordPerfect 6.1)

.w95 Microsoft Windows95 related file

.wad War Allocation Daemon (Doom - Doom2)

.was Script file (source code) (ProComm)

.wav Sound (RIFF WAVE waveform audio format) (Media Player)

.wax Compiled script (ProComm)

.wb1 Notebook (Quattro Pro)

.wb2 Spreadsheet (Quattro Pro)

.wbf Windows Batch File (Catch)

.wbk Auto-backup (MS Word)

.wbk Document/workbook (WordPerfect for Win)

.wbl Upload file (Argo WebLoad II)

.wbt Batch file (WilsonWare WinBatch)

.wcd Macro token list (WordPerfect for Win)

.wch Macro facility file (WordPerfect)

.wcm Data transmission file (MS Works)

.wcm Macro (WordPerfect for Win)

.wcp Product information description (WordPerfect for Win)

.wd Data file (InfoSelect)

.wdb Database (MS Works)

.web Web document (Corel Xara)

.webooglWeb Object Oriented Graphics Library

.wfm Form object (dBASE Form Designer)

.wfn Windows 3.0 font file (CorelDraw)

.wfx Data file (Winfax)

.wg1 Worksheet (Lotus 1-2-3/G)

.wg2 Worksheet (Lotus 1-2-3 for OS/2)

.wgp Game data (Wild Board Games)

.whip Bitmap graphics (WHIP file)

.wic Garbage, fake compressed data. Your files are in WINFILE.DLL

.wid Width table (Ventura Publisher)

.wil Data (WinImage)

.win Window file (FoxPro - dBASE)

.wins Makefile for WINS platform (EPOC)

.wiz Page wizard (MS Publisher - MS Word)

.wiz Wizard (MS Word)

.wk1 Spreadsheet (Lotus 123 version 2.x - Symphony 1.1+)

.wk3 Spreadsheet (Lotus 123 version 3.x)

.wk4 Spreadsheet (Lotus 123 version 3.4)

.wkb Document (WordPerfect for Win)

.wke Spreadsheet (Lotus 123 educational version)

.wki Spreadsheet format (Lotus 123 2.x)

.wkq Spreadsheet (Quattro)

.wks Document (Microsoft Works)

.wks Spreadsheet (Lotus 123 version 1A - Symphony 1.0 - MS Works)

.wks Workspace (Xlisp)

.wkz Spreadsheet (Wingz)

.wlf Upload file (Argo WebLoad I)

.wlk Graphics (Virtus Walkthrough)

.wll Add-in (MS Word)

.wmc Backup of startup files (MathCad)

.wmc Macro file (WordPerfect for Win)

.wmc Text file (WordMARC)

.wmf Vector graphics (Windows MetaFile format)

.wml Wireless Markup Language document (WAP)

.wmp Graphics (Windows Magic Icon Palette)

.wn Text document (NeXT WriteNow)

.wnf Outline font description (CorelDraw native format)

.woa Swap file (Windows 3.x)

.wob Object file (RIO Designer Pro)

.woc Organization (Windows OrgChart)

.wow Music (8 channels) (Grave Mod Player)

.wp Text document (WordPerfect 4.2)

.wp4 text document (WordPerfect 4.x)

.wp5 Text document (WordPerfect 5.x)

.wp6 Text document (WordPerfect 6.x)

.wpd Text document (WordPerfect 6.0 - PFS:WindowWorks)

.wpd Windows printer driver

.wpf Fax (WorldPort)

.wpf Form (WordPerfect)

.wpg Bitmap graphics (WordPerfect Graphics Format)

.wpg Vector graphics (WordPerfect Graphics Format)

.wpj Project (Watcom C/C++)

.wpk Macros (WordPerfect for Win)

.wpm Macros (WordPerfect)

.wpm Text document (WordPerfect for Mac)

.wps Text document (MS Works)

.wpt Template (WordPerfect)

.wpw Document (Novel PerfectWorks)

.wq! Compressed spreadsheet (Quattro Pro)

.wq1 Spreadsheet (Quattro Pro DOS)

.wq2 Spreadsheet (Quattro Pro 5 DOS)

.wr1 Spreadsheet (Symphony 1.1 - 1.2 - 2)

.wrd Template (Charisma)

.wrd Text document (Psion Series 3)

.wri Text document (Windows Write)

.wrk Spreadsheet (Symphony 1.0)

.wrl 3D virtual reality object (VRML worlds) (Cosmo Player)

.wrp Compressed Amiga file archive (Warp)

.wrs Windows Resource eg. printer driver (WordPerfect for Win)

.wrz VRML worlds (Cosmo Player)

.ws APL Worksheet

.ws Text document (WordStar 5.0-6.0)

.ws1 Text document (WordStar for Windows 1)

.ws2 Text document (WordStar 2000 - WordStar for Windows 2)

.ws3 Text document (WordStar for Windows 3)

.ws4 Text document (WordStar for Windows 4)

.ws5 Text document (WordStar for Windows 5)

.ws6 Text document (WordStar for Windows 6)

.ws7 Text document (WordStar for Windows 7)

.wsc Scene file (RIO Designer Pro)

.wsd Document (WordStar)

.wsp Workspace (Fortran PowerStation)

.wsq Wavelet-packet Scalar Quantization Format

.wsrc x-wais source

.wst Text document (WordStar)

.wtk URL address of person to talk to (WinTalk)

.wtx Text document

.wve Sound (8kHz) (Psion Series 3 palmtop)

.wvl Bitmap graphics (Wavelet Compressed Bitmap)

.wwb Button bar for document window (WordPerfect for Win)

.wwk Keyboard layout (WordPerfect for Win)

.wxp Document (EXP for Windows)


.x Archive (X1)

.x Bitmap graphics (24bit) (AVS X image file)

.x Lex language source code file

.x Self-extracting archive (Alysis SuperDisk)

.x X-file animation (Direct3D) (DeepV2)

.x01 Secondary index (Paradox)

.x02 Secondary index (Paradox)

.x03 Secondary index (Paradox)

.x04 Secondary index (Paradox)

.x05 Secondary index (Paradox)

.x06 Secondary index (Paradox)

.x07 Secondary index (Paradox)

.x08 Secondary index (Paradox)

.x09 Secondary index (Paradox)

.x10 Bitmap graphics (X Window dump)

.x11 Bitmap graphics (X Window dump)

.x3d x3d and xdart Formats

.xar Drawing (Corel Xara)

.xbm Bitmap graphics (1bit text) (X Window BitMap)

.xc Bitmap graphics (Constant image of X server screen)

.xck Extended crack file (usually text)

.xcl Script file (Xtree for Win)

.xdf Extended disk format image (OS/2 xdfcopy.exe)

.xfn Printer font (Xerox 4045) (Ventura Publisher)

.xfr Bitmap editor font file (Ventura Publisher)

.xft 24 pin printer font (ChiWriter)

.xgl Graphics language file (MegaBitz)

.xgz Vector drawing (MegaBitz)

.xi Instrument file (Fastracker 2.0)

.xif Graphics (eXtended Image File Format)

.xim Bitmap graphics (X11 Xim Toolkit file)

.xl Spreadsheet (Excel)

.xla Add-in macro sheet (MS Excel)

.xla Xlib Archive (Xlib graphics library)

.xlb Worksheet (MS Excel)

.xlc Chart (MS Excel)

.xld Dialog sheet (MS Excel)

.xlk Backup (MS Excel)

.xll XLL add-in (MS Excel)

.xlm Macro (MS Excel)

.xls Spreadsheet (MS Excel)

.xlt Template (MS Excel)

.xlt Translation table (Lotus 1-2-3 - Symphony - Procomm Plus)

.xlv VBA Module (MS Excel)

.xlw Workspace (MS Excel)

.xm Music (FastTracker - Cubic Player)

.xmi Compressed eXtended MIdi music

.xml XML document (Extensible Markup Language)

.xmz XGL movie (MegaView)

.xnf Standard Network File form

.xnk Shortcut (MS Exchange)

.xof RenderMorphics

.xos Bitmap graphics (Xaos Tools image file)

.xpm Bitmap graphics (8bit text) (X11 pixmap file)

.xqt Executable file (Waffle)

.xqt Macro sheet (SuperCalc)

.xr1 Game data (Epic MegaGames Xargon)

.xrefCross reference (AIX as)

.xrf Cross-reference file

.xsc XML schema

.xt Music track (FastTracker)

.xtb External translation table (LocoScript)

.xtp Overlay (XTreeGold)

.xv Bitmap graphics (Khoros Visualization Image File Format)

.xwd Bitmap graphics (X Window Dump screen window image format)

.xwk Keyboard mapping (Crosstalk)

.xwp Session (Crosstalk)

.xwp Text document (Xerox Writer)

.xx Encoded file archive (ascii) (xxdecode - xxencode)

.xxe Encoded file archive (ascii) (xxencode)

.xy Text document (XY Write)

.xy3 Text document (XYWrite III)

.xy4 Text document (XYWrite IV)

.xyp Text document (XYWrite III Plus)

.xyw Text document (XYWrite for Windows 4.0)


.y Bitmap graphics (subsampled raw YUV file)

.y Compressed Amiga file archive (Yabba)

.y Grammar file (Yacc)

.y01 Secondary index (Paradox)

.y02 Secondary index (Paradox)

.y03 Secondary index (Paradox)

.y04 Secondary index (Paradox)

.y05 Secondary index (Paradox)

.y06 Secondary index (Paradox)

.y07 Secondary index (Paradox)

.y08 Secondary index (Paradox)

.y09 Secondary index (Paradox)

.yal Clipart library (Arts & Letters)

.ybk Yearbook (Microsoft Encarta)

.ybm Bitmap graphics (Face file)

.yc Archive (YACC)

.yif Graphics (color with lookup table)

.yuv Bitmap graphics (Abekas YUV file or CCIR 601 1:1:1 file)

.yuv3Bitmap graphics (CCIR 601 2:1:1 files)

.yz Compressed file archive (YAC)


.z Compressed file archive.z (binary) (Unix SysV pack)

.z3 Infocom game module

.z80 Snapshot (ZX Spectrum emulator by g.a.lunter)

.zad Digitized voice file (ZFax)

.zdg Compressed ZiffNet text document (Zview)

.zeissBitmap graphics (Zeiss CSLM file)

.zer Data file (Zerberus)

.zfd Zeroadic functions (ABC programming language)

.zgm Graphics (Zenographics)

.zinc Bitmap graphics (Zinc Interface Library icon file)

.zip Compressed file archive (InfoZIP - PKZip - WinZip)

.zom Compressed Amiga file archive (Zoom)

.zoo Compressed file archive (Zoo)

.zpd Zeroadic predicates (ABC programming language)

.zrp Rapid simulation package (Rapid)

.zts Script (Z-Term)

.zvd Zyxel Voicefile (Z-Fax)

.zw Chinese text

.zze Encoded file archive (ascii)


.~$~Temporary file (1st Reader)

.~apOld AppExpert project database (Borland C++ 4.x)

.~deProject backup (Borland C++ 4.x)

.~mnMenu backup (Norton Commander)

. $ Temporary file (1st Reader)


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