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 ...

Digital sound is nothing more than numbers. What separates one container from another is how those numbers are packed, how much data (if any) is thrown away, and which devices understand the result.

MP3 has been the most popular lossy audio file format for decades, but AAC is now a popular alternative. Here's what you need ...

In the late 1980s, sharing computer files was a painstaking process. Phil Katz's 1989 invention, the ZIP file format, ...