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 ...

This post explains what is a BAK file and how to open it on a Windows 11/10 PC. BAK file is a backup file that stores a copy of another file (or data in its previous state) for backup and recovery.

Xvid is rarely used these days, but that means it can be hard to know what to do with it if you come across it while digging through your old files. It’s essentially a method for compressing video, ...