New installations of Windows default to hiding the file extension when file names appear in Explorer windows and Open/Save dialog boxes in applications. However, this important element of the file ...

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 ...

Recently I’ve been downloading some audiobooks in MP3 format. I wanted to import them into iTunes for listening on the go, but there’s one problem: iTunes (and, more importantly, my iPhone) can’t ...

Windows natively packs a ton of useful features that are either hidden or disabled by default, even though they're more than good enough to be enabled at first launch. Windows hides file extensions by ...

I was all set to put this “Windows Explorer Explained” series to rest for a while, but then reader Martin wrote in with a question that comes up a lot: in Windows 7, how do you reveal the hidden file ...

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 ...

A: A few weeks back, one way I suggested to protect yourself from unleashing a virus is to be weary of unknown file types. I recommended to not open unknown files with the following extensions: .exe, ...

Windows doesn’t always “just work" — but with a little touch of tinkering, you can fix most of its unfortunate choices. A modern Windows PC works without much tweaking — mostly. But some settings out ...