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 ...

File Extension is that which identifies the file type. If you are a regular Windows user, then it is not at all a problem to identify the file type. For it is very important to see file extension to ...

I can't quite figure it out. Personally, I would be lost without file extensions. How do you know what program to open files up in? How do you tell the difference between pictures and text files?