The X
extension name file type Classification
ACC Graphics Accounts Data File data file
ACF X-Plane Aircraft File data file
ACF Agent Character Data File data file
ACG Audio Comparer Group File data file
ACG Agent Preview File data file
ACMI Tacview Flight Track File data file
ACQ AcqKnowledge Data Graph File data file
ACR Audio Comparer Results File data file
ACZ AppCraft Project data file
ADCP Adobe Device Central Project File data file
ADDISM Addism Data File data file
ADI Amateur Data Interchange Format data file
ADICHT LabChart Data File data file
ADIDAT ADInstruments Simple Data File data file
ADIF Amateur Data Interchange Format data file
ADOBEBRIDGE Adobe Bridge URL FIle data file
ADOX ActivDox Document data file
ADT ACT! Document Template data file
ADU Addict User Dictionary File data file
ADV Nortek Acoustic Doppler Velocimeter File data file
ADVS Adobe Device Central Device Set data file
ADX Approach Index File data file
AECACHE After Effects Cache File data file
AES ooVoo Log File data file
AFE Avid File Exchange File data file
AFF Spellcheck Dictionary Description File data file
AFT Ancestry.com Family Tree Database data file
AGD AgileGraph Data File data file
AGGR Adobe Captivate Aggregate File data file
AGLIB Adobe Lightroom Library data file
AGTOOLKIT Adobe Lightroom Toolkit data file
AIFB AIF Builder Project File data file
AIV AIVault Data File data file
ALC Dynamics AX Label Description File data file
ALD Dynamics AX Application Label Data File data file
ALDF Aldfaer Genealogy File data file
ALF Alf Interactive Test data file
ALF Unity License Request File data file
ALG AlgoBox Algorithm File data file
ALI Dynamics AX Label Index File data file
ALI RoboHelp Alias File data file
AMB All My Books Database File data file
AMB AIMMS Model File data file
AMC Ant Movie Catalog File data file
AML Automation Markup Language File data file
AMM All My Movies Database File data file
AMSORM OnLine Ringman Auction Client File data file
AMU PictureGear Studio Photo Album File data file
AN1 Street Atlas USA Draw File data file
AN8 Vector NTI DNA File data file