Data File Formats that Begin with the Letter ‘A’
|
| .a |
Ada source code file |
|
Library (unix) |
| .a0? |
ALZip Split Archive file |
| .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 |
| .aa |
Audible Audio file |
| .aab |
Macromedia Authorware Binary |
| .aac |
Advanced Audio Coding MPEG-2, MPEG-4 |
| .aam |
Authorware shocked file |
| .aax |
Audible Audiobook file |
| .ab2 |
Parson’s Address Book |
| .ab6 |
Datafile (ABStat) |
| .ab8 |
Datafile (ABStat) |
| .aba |
Palm Address Book file |
| .abc |
ActionScript Byte Code File |
|
ABC FLOWCHARTER 1.x flowchart |
|
ABC2K Audio/Video Controller Software |
| .abd |
AmBiz Bonus Calculator data file |
|
Adventure Builder database |
| .abf |
Adobe Binary Font |
| .abi |
ABI CODER Encryption software |
|
AOL extension: AOL 6 Organizer |
| .abk |
Automatic backup file (CorelDRAW) |
| .abm |
ImagePals Photo Album Document |
|
Montage Photo Album file |
|
PhotoPlus Album file |
| .abr |
Adobe Photoshop brush file |
| .abs |
Abstracts (info file) |
|
Data file (Abscissa) |
|
MPEG audio sound file |
| .abw |
AbiWord document |
| .abx |
WordPerfect Address Book file |
| .aby |
AOL file (located in AOL program directory) |
| .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 / WinAce compressed file |
| .acf |
Microsoft Agent Character file |
|
Adobe Photoshop Custom Filter |
| .aci |
ACI Development Appraisal |
| .acl |
Microsoft Office Auto Correction file |
|
Document file (Audit Command Language) |
|
ArborText Command Language |
| .acm |
Audio Compression Manager Driver |
|
Photoshop command button |
|
Windows system file |
|
ACBM image file |
|
Interplay compressed Sound file |
| .acorn |
ACORN Graphics format |
| .acs |
MS Agent Character file |
| .acs2 |
AIMP2 Media Player Skin file |
| .acsm |
Adobe Content Server Message 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) |
| .ade |
Microsoft Access Project |
| .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 |
|
Administrative template files for protected mode in Internet Explorer 7.0 |
|
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 |
| .aep |
Adobe After Effects Project file |
| .aex |
PGP Armored Extracted Public Encryption Key |
|
After Effects Plugin file |
| .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) |
| .afs |
Adobe Type Manager font set |
| .aft |
AnyForm template file |
| .ag |
Applixware graphics 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 |
Adobe AIR Installation Package file |
|
Automatic Image Registration |
| .ais |
Array of Intensity Samples graphics (Xerox) |
| .aix |
Datafile for cardfile application (HP NewWave) |
| .ajp |
JPEG2000 Digital closed-circuit television (CCTV) security camera video format |
| .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) |
| .alx |
ActiveX Layout file |
| .alz |
ALZip Compressed file |
| .amf |
Music (Advanced Module Format) |
| .amff |
Amiga Metafile |
| .amg |
Compressed file archive created by AMGC |
|
System image file (Actor) |
| .amp |
Photoshop Arbitrary Map Settings |
| .amr |
Adaptive Multi-Rate ACELP Codec |
|
Above audio file extension |
| .amv |
AMV Video file |
| .amx |
After Effects Motion Exchange file |
| .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) |
|
ARCHOS 504 media |
| .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 |
Adobe Acrobat Plugin file |
|
Passed parameter file (1st Reader) |
|
Printer driver (Lotus 1-2-3) |
| .apk |
Android Package file |
| .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 |
|
Adobe ActionScript Communication 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 |
| .asx |
Microsoft Advanced Streaming Format |
| .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 |
| .aty |
3D Topicscape (Exported association type) |
| .au |
Sound (audio) file (SUN Microsystems) |
| .au3 |
Autoit3 script file |
| .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) |
| .avr |
Audio Visual Research file |
| .avs |
Animation file |
|
Application Visualization System Format |
|
Stardent AVS-X image |
|
Winamp Advanced Visualization Studio file |
| .avx |
ArcView file |
| .aw |
Text file (HP AdvanceWrite) |
|
Answer Wizard for Microsoft Help |
| .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) |
| .awp |
Microsoft Fax key viewer |
| .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 |
| .azw |
Amazon Kindle eBook File |
| .azz |
AZZ Cardfile |
