What is a file extension

File extension is a suffix added at the end of computer file. It purpose it to identify data content encoding scheme (so called file format) used for given file

A file extension is the group of three or more characters after the period (dot character) that is included in the full filename.

Basic filename format convention is as follows: rootname.ext (where .ext is the file extension)

How can we help you?

We have created a comprehensive, regularly update database and a search engine that lets you browse hundreds of files. Most listed file types come with a detailed descriptions, including usage and related applications capable of opening the file type you searched for.

Searching our file extension database is very easy – user just needs to input the extension’s name in the search field and wait for the results. File extension database can also be browsed be sorting entries in alphabetical order using navigation menu located at the top of the window.