How to Play MP4 Files in Media Player. An MP4 file is an MPEG-4 video encoding used for viewing movies. It is a file compression format that provides a wrapper for video, audio and text. Its low ...

When it comes to converting file extensions on your iPhone, don't worry about downloading a third-party app when you can make the changes yourself.

Video with the ".mpeg" file extension is usually created using MPEG-1 standard encoding. Facebook also supports other MPEG video formats like MPEG-4. These videos usually have an ".mp4" file ...

Microsoft is making it easier to change your default file associations by adding a new search feature that lets you quickly find the extension you wish to modify.