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File Extensions

Clear explanations, compatible software, and practical guidance for file extensions.

55
Indexed file extensions
Popular searches:
.docx .psb .phtml .odt .pdf .7z

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55 extensions
Letter: A Clear all
.ANE

Adobe Native Extension

Programming
.ANIMATED PNG

Animated Portable Network Graphics

Image
.APE

Monkey's Audio

Audio
.APKM

APK Manifest

Data
.APKS

Android Package Set Archive

Archive
.APNG

Animated Portable Network Graphics

Image
.APP (MACOS)

Application Bundle

Executable
.APPIMAGE

AppImage

Executable
.APPX

Application Package

Executable
.ARFF

Attribute-Relation File Format

Data
.ARROW IPC

Apache Arrow IPC Stream

Data
.ARW

Sony Alpha Raw

Image
.ARX

AutoCAD Runtime Extension

Executable
.ASCII GRID

ASCII Grid

Data
.ASCIIDOC

AsciiDoc

Data
.ASF

Advanced Systems Format

Video
.ASM

Assembly Language Source Code File

Programming
.ASP.NET

ASP.NET Web Page

Programming
.ASPX

Active Server Pages Extended

Programming
.ASS

Advanced SubStation Alpha

Video
.ASSETBUNDLE

Unity Asset Bundle

Data
.ASSETS

Unity Assets Bundle

Data
.ASX

Advanced Stream Redirector

Data
.AUPRESET

Audio Unit Preset File

Audio
.ANE

Adobe Native Extension

Programming
.ANIMATED PNG

Animated Portable Network Graphics

Image
.APE

Monkey's Audio

Audio
.APKM

APK Manifest

Data
.APKS

Android Package Set Archive

Archive
.APNG

Animated Portable Network Graphics

Image
.APP (MACOS)

Application Bundle

Executable
.APPIMAGE

AppImage

Executable
.APPX

Application Package

Executable
.ARFF

Attribute-Relation File Format

Data
.ARROW IPC

Apache Arrow IPC Stream

Data
.ARW

Sony Alpha Raw

Image
.ARX

AutoCAD Runtime Extension

Executable
.ASCII GRID

ASCII Grid

Data
.ASCIIDOC

AsciiDoc

Data
.ASF

Advanced Systems Format

Video
.ASM

Assembly Language Source Code File

Programming
.ASP.NET

ASP.NET Web Page

Programming
.ASPX

Active Server Pages Extended

Programming
.ASS

Advanced SubStation Alpha

Video
.ASSETBUNDLE

Unity Asset Bundle

Data
.ASSETS

Unity Assets Bundle

Data
.ASX

Advanced Stream Redirector

Data
.AUPRESET

Audio Unit Preset File

Audio
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Frequently Asked Questions

Everything you need to know about file extensions

You can search by entering a file extension directly in the search bar or browse the directory by category or alphabetical index.

Each listing provides a definition of the file extension, common use cases, compatible software, supported platforms, and related or alternative formats.

The database is updated regularly to reflect new file extensions, changes in software compatibility, and evolving file format standards.