ATB-Alphacam-Lathe-VB-Macro-Planit
ATB-AnetHelp-Tools-file-format
ATB-TechMed-Annotation-ToolBar-TechMed
ATC-AceText-Collection-JGsoft-Just-Great-Software
ATC-ACUCOBOL-GT-Thin-Client-command-file
ATC-AutoCAD-catalog-file
ATC-Sniffer-Capture-File-Network-Associates-Technology-Inc
ATD-Alphacam-Lathe-Drawing-Planit
ATD-Microsoft-Systems-Management-Server-file-format
ATD-Systems-Management-Server-SMSADDIN-EXE-tool-regist
ATE-Office-Accounting-Compressed-Backup-File
ATF-Adobe-Photoshop-transfer-function
ATF-Altera-design-file
ATF-Aspect-TIF-file
ATF-Axon-text-file
ATF-Canvas-duotone-curve-file
ATF-GenePix-Axon-Text-File-Molecular-Devices-Corporation
ATF-Linux-file
ATF-Photoshop-Transfer-Function
ATF-Photoshop-Transfer-Function-Adobe-Systems-Incorporated
ATF-Sharp-APL-Workspace-Export-File
ATF-Unknown-Apple-II-File
ATH-Alphacam-Lathe-Thread-Planit
ATH-Athena-Document-Bertil-Rolf-and-Charlotte-Magnusson
ATH-Athena-document-v2-x-Header
ATHEME-Amazing-clock-Theme-Amazing-Clock-com
ATI-Office-Accounting-Updated-Company-File
ATK-Andrew-Toolkit-Raster-Object-Bitmap
ATK-Bitmap-image-Andrew-Toolkit-Raster-Object-file
ATL-ATP-Assembler-Source-Brancepeth-Computer-Publications
ATL-AutoTap-Log-File-B-B-Electronics-Mfg
ATL-Hal-file
ATL-PROGNOSIS-Atlas-Document-File
ATM-Adobe-Type-Manager-data-info-file
ATMC-Adobe-Type-Manager-File
ATMC-MAC-file-type
ATMN-Automation-Anywhere-Automation-Macro-Tethys-Solutions-LLC
ATMSPHR-ATMoSPHeRe-TerraGen-landscape-renderer
ATMSPHR-TerragGen-Atmosphere-Planetside-Software
ATN-Adobe-Photoshop-action-Adobe-Photoshop
ATN-Daqarta-Extended-Audio-Data-Interstellar-Research
ATN-Photoshop-Action-File-Adobe-Systems-Incorporated
ATN-Photoshop-Actions-File
ATN-Visual-FoxPro-WWW-search-page-wizard-file
ATO-ATO-Modeler-Project-File-E2S-n-v
ATO-Just-Burn-File-Sonic-Solutions
ATOM-Atom-Feed
ATOM-Atom-Syndication-Format
ATOM-Atom-web-feed-Header
ATOMS-Ribbons-atoms-file
TechTarget file types