Breakthroughs, discoveries, and DIY tips sent six days a week. Terms of Service and Privacy Policy. A file’s format—the way that it’s saved and encoded ...

A file extension is a suffix that is added to the end of a file name after a dot. It is usually two to four letters long. File extensions help Windows and other operating systems to know the standard ...

A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

The MP3 made the iPod possible. Photo: Jim Merithew/Cult of Mac July 14, 1995: The MP3 file format receives its official name as the new .bit file extension gets changed to .mp3. The technology allows ...