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 world of video formats can be pretty confusing, but there are only a few things you really need to know. First, it's important to note that a video format is more than just its file extension.

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, ...

Normally, if you change a file’s extension in Windows, it doesn’t do anything positive. It just makes the file open in the wrong programs that can’t decode what’s inside. However, [PortalRunner] has ...