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aa	Audible audio
aa3	Sony ATRAC audio
aaa	Sybase SQL Anywhere temporary data
aab	Google Android app bundle
aac	Advanced audio coding stream file
aacx	AdminStudio data
aad	Audible download plugin
aae	Apple Photos sidecar file
aaf	Advanced Authoring Format
aah	Amazingly Abstracted HTML document
aai	Dune HD Player AAI graphics image
aam	Adobe Authorware shocked data
aan	Pro Tools analysis data
aao	America's Army map
aap	Apollo Advanced Playlist
aapkg	ArchestrA IDE package
aar	Apache Axis2 archive
aardv2	XPO Usedcar manager data
aas	Autodesk animation setup movie clip
aat	ArcInfo line data
aatrend	ActiveFactory trend data
aaui	Adobe Acrobat UI settings
aav	OccuRec recorded video
aaw	Lavasoft Ad-Aware 2007 settings
aawdef	Ad-Aware definitions
aax	Audible enhanced audio data
aaxplugin	Pro Tools audio plugin
ab	Google Android Debug Bridge backup
ab$	Autodesk AutoCAD plot spooling data
ab1	ABIF file format
ab2	Parson's address book
ab3	Photoimpact 3 album
ab4	AB4 Accounting & Business data
ab6	ABStat data
ab65	Adobe PageMaker document
ab8	ABStat data
aba	Avant Browser add-on
abap	ABAP source code
abb	AlphaBB data
abbu	Apple Address Book contacts archive
abc	Micrografx FlowCharter data
abcd	AudioVisual book data
abcddb	Apple Address Book database
abcdg	Apple Address Book data
abcdmr	Apple Address Book mail recent data
abcdp	Address Book card data
abd	Quicken Address Book add-on
abdata	Adobe Bridge data
abe	Application Boundaries Enforcer rules data
abf	Adobe binary screen font
abg	FIFA World Cup game data beart file
abi	AOL 6 organizer data
abk	Ability Write document backup
abkprj	Ashampoo Burning Studio backup project file
abl	ADONIS Application Business Library
abm	Music album
abn	Alpha Five data
abnf	jCard to vCard data
abo	Applix Builder data
abp	AVS Barcode profile
abr	Adobe Photoshop brush
abs	GNU C Compiler ELF/DWARF format absolute data
abst	Adobe HDS bootstrap data
abt	The Arbiter game schedule
abu	ACT! e-mail address book
abu1	ASUS ZenFone backup
abw	AbiWord document
abx	Corel WordPerfect Mail address book
aby	AOL address book
abz	AbszOrb 3D interactive game file
ac	AC3D geometry data
ac$	AutoCAD undo info data
ac0	SPICE AC/frequence domain output file
ac1	SPICE AC/frequence domain output file
ac1d	AC1D-DC1A Packer module
ac2	SPICE AC/frequency domain output
ac3	Dolby Digital sound
ac3d	3D format data
ac4	SPICE AC/frequence domain output file
ac5	SPICE AC/frequence domain output file
ac6	SPICE AC/frequence domain output
ac7	SPICE AC/frequency domain output
ac8	SPICE AC/frequence domain output file
ac9	SPICE AC/frequence domain output file
aca	PMW project manager workbench project file
aca2	Fontographer data
acad	AutoCAD database
acb	Adobe Photoshop Color Book file
acbl	Adobe Color Book data
acbm	Amiga Continuous Bitmap format
acc	GEM desktop accessories
accda	Microsoft Access add-in
accdb	Microsoft Access main database
accdc	Microsoft Access digitally signed database
accde	Microsoft Access compiled execute only database
accdp	Microsoft Access project
accdr	Microsoft Access runtime mode database
accdt	Microsoft Access database template
accdu	Microsoft Access database wizard
accdw	Microsoft Access link

What file extension actually is?

Simply put, file extensions are the characters after the dot in the file name, so for example filename.mp3 has file extension „mp3“. This helps Windows to identify which program should be used to open the file.

We can help you to open your file

Our database contains a huge list of different file extensions, usually with detailed description and programs that can be used to open or otherwise work with that particular file type.

Only original software

Every software listed in our database is verified and ve provide link to the developer or to the software own website, which should hopefuly be enough for you to download the most recent version of the program.