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.

cfa file icon.cfa - Adobe multimedia cache

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

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

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

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

numbers file extension icon file extension numbers - Apple Numbers spreadsheet

pages file extension icon file extension pages - Pages document

jpg file extension icon file extension jpg - JPEG bitmap image format

default file extension icon file extension oxps - Microsoft OpenXPS document

crdownload file extension icon file extension crdownload - Google Chrome incomplete download

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

dwg file extension icon file extension dwg - AutoCAD drawing

one file extension icon file extension one - Microsoft OneNote document

cdr file extension icon file extension cdr - CorelDRAW vector or bitmap graphics

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 circuit - KTechlab circuit design

default file extension icon file extension trn - STN Express transcript text

case file extension icon file extension case - EnSight results data

std file extension icon file extension std - OpenOffice.org drawing template

default file extension icon file extension 787 - Pro/Engineer WildFire data

vsv file extension icon file extension vsv - Virtual machine's memory saved-state

default file extension icon file extension gnc - Great Notions embroidery data

default file extension icon file extension zipfs - 18 Wheels of Steel: Across America game data

default file extension icon file extension emm - MikuMikuDance MikuMikuEffect data

r73 file extension icon file extension r73 - RAR compressed files from a multi-volume archive

default file extension icon file extension tr2 - Borland Turbo Debugger session-state settings

default file extension icon file extension vdf - Gothic game data

default file extension icon file extension mdpf - Mac modem preferences

default file extension icon file extension ubj - Universal Binary JSON format

default file extension icon file extension mftpkg - MacFamilyTree project

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

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