FileInfo.comFileInfo.com

The File Format Database

Search over 10,000 file extensions and software programs.

cloud uploadDrop your file to view details

File Type of the Day

Today • July 18

.PGN

Portable Game Notation File

A PGN file is a Portable Game Notation file. It contains a record of the moves played in a chess game, as well as game metadata (such as the game's players, platform, and date).

July 17

.MP4

MPEG-4 Video

An MP4 file stores a video in the widely used MPEG-4 Part 14 (MP4) multimedia container format. It typically contains video and audio data (and related metadata) but may also store subtitles and still images.

July 16

.CXX

C++ Source Code File

A CXX file is a source code file written in the C++ programming language. It may store code for a standalone program or components that can be included in other C++ source files.

Universal File Viewers

Open your files with one of these file viewing utilities recommended by FileInfo.com.

About FileInfo.com

FileInfo.com contains a searchable database of over 10,000 file extensions with detailed information about the associated file types. You can look up information about unknown file types and find programs that open the files. Learn more about FileInfo.com.


Developers

Submit a file format

Recent Updates