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, ...

Sometimes when you're watching online videos on youtube or other sites, you want to save some of them for later offline playback. You've probably heard of Firefox ...