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 ...

Every file that we have saved on our computers has a particular extension. The file extension is added at the end of the filename followed by a dot (.). It tells the operating systems about the ...

Windows: This week’s featured Windows app isn’t really an app per se, but it’s an incredibly useful extension you’ll want to grab from the Windows Store if you have any kind of device—cough Apple ...