ACROBATSECURITYSETTINGS-Adobe-Acrobat-Security-Settings-File
ACRODATA-Acrobat-Data-File
ACRS-AuthorWare-File
ACS-Character-structured-storage-file-Microsoft-Agent
AC-Sense-Data-File
ACSM-Adobe-Content-Server-Message
ACSM-Adobe-Content-Server-Message-File
ACT-Act
ACT-Action-Presentation
ACT-FoxPro-Foxdoc-Action-Diagram
ACTION-Automator-Action
ACTION-MAC-OS-X-Automator-action
ACTIONSCRIPT-Adobe-Flash-ActionScript
ACTIONS-Defaults-file
ACTIONS-Photoline4-Defaults-File
ACTIVITYDIAGRAM-Microsoft-Visual-Studio-activity-diagram-file
ACT-Microsoft-Office-Assistant-Actor-file
ACTPROJ-Visual-Studio-NET-ACT-Project-Microsoft-Corporation
ACU-ACUCOBOL-GT-Intermediate-Object-File-Acucorp-Inc
ACU-AppleLink-PE-Compression-Format
AC-Unknown-Apple-II-File
ACU-NuFX-Applelink-archive
ACV-Used-to-Compress-and-decompress-audio-data
ACW-Accessibility-Wizard-Settings-Microsoft-Corporation
ACW-AutoCaption-Worksheet-File-Image-Logic-Corporation
ACW-Microsoft-Accessibility-Wizard-Settings
ACX-Atari-ST-Executable
ACX-Atari-ST-Program
ACX-FOCUS-WebFOCUS-File-Description
ACX-Rational-XDE-IBM
AD1-Forensic-Toolkit-FTK-Imager-image-file
AD2-ad2-Web-Page-Script-File-ad2-Inc
AD2-ADPCM-2-bit-compressed-voice-file
AD2-ADPCM-2-bit-compressed-voice-file-ZFAX
AD3-ADHOCw-file
AD3-ADPCM-3-bit-compressed-voice-file-ZFAX
AD3-Compressed-Voice-File
AD3D-Dimension
AD3E-Adobe-Dimensions-File
AD3E-MAC-file-type
AD3-Localisation-Windows
AD65-MAC-file-type-MAC-CREATOR-CODE
Ada-Ada-source-text-file-non-GNAT
AD-After-Dark-screensaver
ADBA-Advanced-Integrated-Maintenance-Support-System
ADBA-AIMSS-author-project-configuration-file
ADB-Ability-Database-file
ADB-Ada-source-text-body-file-GNAT
ADB-HP-100LX-Organizer-Appointment-database
ADBLOCK-Alpha-Five-temporary-file
TechTarget file types