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Home > Quick Reference > File Extensions

Data Formats and Their File Extensions -- A

Number Symbol 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 Full List
.a	Ada source code file
.a	Library (unix)
.a11	Graphics AIIM image file
.a2b	A2B Player Playlist 
.a3d	Amapi 3D Modeling file
.a3m	Unpackaged Authorware MacIntosh file
.a3w	Unpackaged Authorware Windows file
.a4a	Authorware 4.x Library 
.a4m	Unpackaged Authorware MacIntosh file
.a4p	Authorware file packaged without runtime
.a4w	Unpackaged Authorware Windows file
.a5w	Unpackaged Authorware Windows file
.aab	Macromedia Authorware Binary
.aam	Authorware shocked file
.ab2	Parson's Address Book
.ab6	Datafile (ABStat)
.ab8	Datafile (ABStat)
.aba	Palm Address Book file
.abc	ABC FLOWCHARTER 1.x flowchart
	ABC2K Audio/Video Controller Software
.abd	AmBiz Bonus Calculator data file
	Adventure Builder database
.abf	Adobe Binary Font
.abk	Automatic backup file (CorelDRAW)
.abm	ImagePals Photo Album Document
	Montage Photo Album file
	PhotoPlus Album file
.abs	Abstracts (info file)
	Data file (Abscissa)
	MPEG audio sound file
.abw	AbiWord document
.abx	WordPerfect Address Book file
.ac3	AC3 Audio File Format 
.aca	Microsoft Agent Character file
	Project (Project Manager Workbench)
.acb	Graphics (ACMB)
.acc	Program (DR-DOS - ViewMax) (GEM / resident)
.acd	Sonic Foundry Acid music file
.ace	Ace Archiver compressed file
.acf	Microsoft Agent Character file
	Adobe Photoshop Custom Filter 
.aci	ACI Development Appraisal
.acl	Document file (Audit Command Language)
.acm	Audio Compression Manager Driver
	Photoshop command button
	Windows system file
	ACBM image file  
 	Interplay compressed Sound file 
.acs	MS Agent Character file
.act	Actor source code file
	Foxdoc Action Diagrams (FoxPro)
	Presentation (Action!)
.acv	OS/2 Audio Drivers
	Photoshop Saved Curve
.ad	Screen saver data (AfterDark)
.ada	Ada source code file
.adb	Ada Package Body
.adc	Bitmap graphics (16 colors) (Scanstudio)
.adf	Adapter Description file
	Admin Config file
	Amiga Disk File 
	Dog Creek QC Mask file
.adi	Graphics (AutoCAD)
.adl	Mca adapter description library (QEMM)
.adm	After Dark Screen Saver Module   
	Windows Policy Template
	Addict Compiled Dictionary
	Advantage Data Server Database Memo file
.adn	Add-in (Lotus 1-2-3)
.ado	Photoshop Duotone Options
	Stata Program
.adp	FaxWorks Modem setup file
	Astound Dynamite file
	MS Access Project
	AOLserver Dynamic Page file
.adr	Address Book
	Address Plus Database
	After Dark Random Screen Saver Module
	Opera Web Browser Bookmark file
	Smart Address Address Book
.ads	Ada Package Specification
.adt	Datafile for cardfile application (HP NewWave)
	Fax (AdTech)
.adx	Document (Archetype Designer)
.adz	GZ-Packed Amiga Disk file
.aeh	iPer Advanced Embedded Hypertext
.aex	PGP Armored Extracted Public Encryption Key
.af2	Flowchart (ABC FlowCharter 2.0)
.aff	AnyForm Form file
.afi	Truevision bitmap graphics
.afl	Font file (for Allways) (Lotus 1-2-3)
.afm	Type 1 font metric ASCII data for font installer (ATM - many)
	Datafile for cardfile application (HP NewWave)
.aft	AnyForm template file
.agp	Aspen Graphics Pages
.agw	Aspen Graphics Windows
.ai	Vector graphics (Adobe Illustrator)
.aiff	Audio interchange file format
.ain	Compressed file archive created by AIN
.aio	APL file transfer format file
.air	Automatic Image 
.ais Array of Intensity Samples graphics (Xerox) .aix Datafile for cardfile application (HP NewWave) .alb JASC Image Commander Album Photo Soap2 file Steinberg Cubase or VST Backup Song file .albm webAlbum Photo Album HP Photosmart Photo Printing Album .all Format file for working pages (Always) General printer information (WordPerfect for Win) Symbol and font files (Arts & Letters) .als Alias Image Calmira Shortcut file .alt Menu file (WordPerfect Library) .alz ALZip Compressed file .amf Music (Advanced Module Format) .amg Compressed file archive created by AMGC System image file (Actor) .amp Photoshop Arbitrary Map Settings .anc Animation file format (MorphInk) .ani Animation (Presidio - many) .anm Animation (Deluxe Paint Animator) .ann Help Annotations (Windows 3.x) .ans Ansi graphics (character animation) Ascii text ANSI character set (NewWave Write) .aos Add-On Software (Nokia 9000) .ap Compressed Amiga file archive created by WHAP Datafile (Datalex EntryPoint 90) Artwork Systems Program (ArtPro) .apc Printer driver (Lotus 1-2-3) .apd Printer driver (Lotus 1-2-3) .ape Music format (different players) .apf Printer driver (Lotus 1-2-3) .api Passed parameter file (1st Reader) Printer driver (Lotus 1-2-3) .apl APL work space format file .apm ArcPad 6 file .app Add-in application file (Symphony) Application object file (dBASE Application Generator) Executable application file (DR-DOS - NeXTstep - Atari) Generated application (FoxPro) .apr Employee performance review (Employee Appraiser) .aps MS Visual C++ file ArcPad 5 Symbology file .apx Appexpert database file (Borland C++ 4.5) .arc Compressed file archive created by ARC (arc602.exe/pk361.exe) Compressed file archive created by SQUASH (squash.arc) .arf Automatic Response file .arg AutoCAD Profile Export file .ari Compressed file archive created by ARI .arj Compressed file archive created by ARJ (arj241.exe) .arl AOL Organizer File .ark Arc file archive created by CP/M port of ARC file archiver Compressed file archive created by QUARK .arr Arrangement (Atari Cubase) .ars Adobe After Effects Render .art Graphics (scrapbook) (Art Import) Raster graphics (First Publisher) .arv Arsiv File AutoRoute User Information .arx Compressed file archive created by ARX .asa MS Visual InterDev file Active Server Document .asc Ascii text file Transport armor file (PGP) .ascx Microsoft ASP.NET user control file .asd Autosave file (Word for Windows) Presentation (Astound) Screen driver (Lotus 1-2-3) .asf Datafile (STATGRAPHICS) Screen font (Lotus 1-2-3) .ash Assembly language header file (TASM 3.0) .asi Assembler include file (Turbo C - Borland C++) .asl Adobe Photoshop Layer file .asm Assembly source code file Pro/Engineer Assembly file .asmx Microsoft .NET Web Service file .aso Assembler object (object orientated) file (Turbo Assembler) .asp Microsoft Active Server Page Aspect source code file (Procomm Plus) Association of Shareware Professionals OMBUDSMN.ASP notice .aspx Microsoft ASP.NET file .asr Ms Automap Route Photoshop Scratch Area .asx Microsoft Windows Media Active Stream Redirector file .at2 Auto template (Aldus Persuasion 2.0) .atm Adobe Type Manager data/info .atn Adobe Photoshop Action file .atr Lightscape Material Library .att AT&T; Group 4 Bitmap .au Sound (audio) file (SUN Microsystems) .aud Audio file .aut AutoIt Script PocketWear Car Lease Kit vehicle data file TLG Workplace CD search file Xitami Webserver Admin Password file GPSMan-autoMapic file Signwave Auto-Illustrator file Descent Manager Mission file Authentication file (various) Interactive Pictures iPIX Format .aux Auxillary references (TeX/LaTeX) Auxiliary dictionary (ChiWriter) .ava Publication (Avagio) .avb Inoculan Anti-Virus virus infected file Microsoft Chat character file .avd Avery Label Pro Data file .avi Audio Video Interleaved animation file (Video for Windows) .avs Animation file Application Visualization System Format Stardent AVS-X image Winamp Advanced Visualization Studio file .avx ArcView file .aw Text file (HP AdvanceWrite) .awb Lavasoft Ad-aware backup file .awd AWD MS Fax Award BIOS file AWK Language Source Code file .awe Adobe Acrobat Bookmark XML file .awk Awk script/program .awm Movie (Animation Works) .awr Telsis Digital Audio file .aws Data (STATGRAPHICS) .ax DirectShow Filter .axd Avery Label Pro Re-Index file Actrix Technical file .axe Paradigm C++ Integrated Debugger file ChordMaster MS Autoroute export file .axg MS Autoroute Trip file .axl ArcIMS XML Project file .axs AMX Axcess control system file format HTML Active X script .axt ZenWorks snAPPshot ASCII Application Object template Photoshop Replace Color/Color Range .axx axxess files used as backups of Inter-Tel databases .azz AZZ Cardfile

Number Symbol 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 Full List

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