OpenFile.me

Browse file extensions
with the first letter of the file name suffix: a  page 3

Just click below the file extension you are looking for and you will find programs that can be used to open it.

List of file extension entries starting with the letter a (page 3)

  • .access Java access control data
  • .accessor Microsoft Visual Studio accessor data
  • .accfl Microsoft Access field template file
  • .accft Microsoft Access database template
  • .accountpicture-ms Microsoft Windows account picture
  • .acct IBM AIX system data
  • .acctl Microsoft Office InfoPath data
  • .acd ACID Pro audio project
  • .acd-bak ACID Pro project backup
  • .acd-zip Sony ACID compressed project
  • .acdb Riviera-PRO coverage database
  • .ace WinACE compressed ace archive
  • .acf Microsoft Agent HTTP character data
  • .acff Volocity library clipping
  • .acfm Adobe composite font metrics
  • .acg Age of Wonders saved game
  • .acgd ACG System predictive model
  • .acgi ACGI script (WWW)
  • .acgl ACG System license
  • .ach RSLogix 5 project
  • .aci ACI development appraisal
  • .acid Sony ACID Pro project
  • .ack Swifty data
  • .acl Microsoft Office automatic correction list
  • .aclapp Packaging analysis app
  • .aclk Unknown file extension
  • .aclock Amazing Clock theme
  • .aclx InstallShield Analysis App project
  • .acm ACM compressed sound
  • .acmb Graphics
  • .acmd Apache Commander project
  • .acml Aircraft Movement Logger 2010 data
  • .aco Adobe Photoshop color palette and swatches data
  • .acorn Acorn drawing
  • .acp Virtual Architecture CAD data
  • .acq AcqURL bookmark manager database
  • .acr Bitmap graphics
  • .acrobatsecuritysettings Adobe Acrobat security settings
  • .acrodata Adobe Acrobat data
  • .acroplugin Adobe Acrobat plug-in
  • .acrotheme Adobe Acrobat theme
  • .acrs Adobe Authorware data
  • .acrypt AutoCrypt encrypted document file
  • .acs Microsoft Agent character structured storage
  • .acs2 AIMP Media Player skin
  • .acs3 AIMP skin package
  • .acsm Adobe Content server message
  • .acsrf Adobe Audition control surface plugin
  • .act Adobe Photoshop/Illustrator color table
  • .act! Act! data
  • .action Apple Automator action script
  • .actions Photoline 4 defaults data
  • .actionscript Adobe Flash ActionScript data
  • .actionscriptproperties Adobe Flex settings
  • .activitydiagram Microsoft Visual Studio activity diagram
  • .actm Autodesk AutoCAD action macro
  • .actproj Microsoft Visual Studio Visual SourceSafe ACT project
  • .actx DS Game Maker action description data
  • .acu Machine independent COBOL object
  • .acv Adobe Photoshop colour curves
  • .acw Microsoft Accessibility Wizard data
  • .acww ACWW pattern data
  • .acx Atari ST program
  • .acz AppCraft project
  • .ad After Dark screen saver data
  • .ad1 Forensic Toolkit FTK Imager image
  • .ad2 ADPCM 2-bit compressed voice
  • .ad3 ADPCM 3-bit compressed voice
  • .ad3e Adobe Dimensions for Mac data
  • .ad4 4D Systems audio data
  • .ad65 Adobe PageMaker document
  • .ada ADA language source code
  • .adadownload Adobe Download Assistant partially completed download
  • .adb Ability Database database
  • .adba AIMSS author project configuration
  • .adblock Alpha Five temporary
  • .adc Lingvo dictionary
  • .adcp Adobe Device Centra project
  • .add Alphacam CAD/CAM die-cut drawing
  • .addin Microsoft Visual Studio add-in
  • .addoc AudioDesk project
  • .addon Zaplots CFS Console addon
  • .addr Metin2 data
  • .addressbooklocks Mac OS X (macOS) Address Book data
  • .ade Microsoft Access compiled project
  • .adev AppleTalk extension
  • .adex Adex bitmap graphics
  • .adf ESRI coverage data
  • .adg Ableton Live device group data
  • .adh Audible Manager data
  • .adi AutoCAD device-independent binary plotter file
  • .adiumemoticonset Adium emoticon set file
  • .adiumhtmllog Adium HTML log
  • .adiumlistlayout Adium list layout file
  • .adiumlog Adium log
  • .adiummenubaricons Adium menu bar icon file
  • .adiummessagestyle Adium message style settings
  • .adiumplugin Adium plugin file
  • .adiumscripts Adium AppleScripts file
  • .adiumserviceicons Adium service icons

What is the meaning of a file extension?

File extensions are characters that appear after the dot in a computer file's name. For example, the file "unknown-file.pdf" has the file extension "pdf". This is used to identify which program should open the file or what file type it is.
File extensions help you organize and manage files. They provide a quick and easy way to identify and associate the file type with the appropriate software.

We can help you open your file

In our database, we have collected a huge number of different file extensions, detailed descriptions, and programs that can be used to open or otherwise work with the file extensions listed in our database.
This database is an invaluable resource for users who want to understand better file extensions and what they can do with them. It also allows users to know different file types with the same purpose.

Only verified software links are provided

We have verified every software listed in our database. The software listed in our database includes links to the developer's or software's website. These links should allow you to download the right program for each file type. Using verified software from reputable sources helps minimize the risk of malware and viruses infecting your computer.