File extensions sample

File extension or filename suffix is usually three, four or more characters at the end of computer file names divided by a dot.
File extensions are useful to computer programs and operating systems like Windows or macOS (OS X), and basically telling them, what kind of data and file type they are working with and what associated program opens the file.
 

File-extensions.org library contains thousands of file extensions and the database is still growing.  
A large number of file type entries have detailed descriptions, including their current use and the list of programs that can open, view, edit, convert or play unknown file you search for.
 

Latest articles

Check out the recently published articles related to file extensions, tutorials or software tips.

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I want to convert from      to    

Begin your search by entering the source and target file type specified by their file extensions. For example simply try flac to mp3.

File extension of the day

Random daily pick from File-Extensions.org's database.

opus file icon.opus - Opus audio data

For an overview of common file types,
visit the common file extensions page, which includes a list of the most important computer file formats you should know.

Popular file extensions

List of the most visited file extension records. Click on the link below for more details and software associations.

apk file extension icon file extension apk - Google Android application package

pdf file extension icon file extension pdf - Adobe Portable document format

rar file extension icon file extension rar - WinRAR RAR compressed archive

mp4 file extension icon file extension mp4 - MPEG-4 video file format

jpg file extension icon file extension jpg - JPEG bitmap image

docx file extension icon file extension docx - Microsoft Word Open XML document

xlsx file extension icon file extension xlsx - Microsoft Excel Open XML workbook and spreadsheet

default file extension icon file extension epub - Open Publication structure e-book

mp3 file extension icon file extension mp3 - Compressed audio and music file, mp3 songs or ringtones

default file extension icon file extension part - Partial download

default file extension icon file extension xapk - Google Android XAPK application package

default file extension icon file extension oxps - Microsoft OpenXPS document

default file extension icon file extension ris - Research Information Systems citation

exe file extension icon file extension exe - Program executable

default file extension icon file extension crypt12 - WhatsApp Messenger message database

Recently updated file extensions

The file extension database is maintained and improved on daily basis. Here you can check last updated entries.

default file extension icon file extension pano - Windows Panorama data

default file extension icon file extension scss - Syntactically Awesome Stylesheets syntax data

m2t file extension icon file extension m2t - MPEG-2 transport stream

cda file extension icon file extension cda - CD Audio track

default file extension icon file extension sbu - Samsung Kies backup

extra file extension icon file extension extra - Mozilla Firefox crash report

rsp file extension icon file extension rsp - Linker response data

default file extension icon file extension rsc - Resource data

default file extension icon file extension pat - AutoCAD hatch pattern

default file extension icon file extension 33 - Creo Elements/Pro versioned data

csproj file extension icon file extension csproj - Microsoft Visual Studio Visual C# project

accdb file extension icon file extension accdb - Microsoft Access main database

igy file extension icon file extension igy - Microsoft Excel web query data

default file extension icon file extension f - Fortran source code

default file extension icon file extension adobepassdb_3 - Adobe data

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

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