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 ...

An uncomputer savy mac user sent me a file containing info that I need, but did not tell me what the file type is, and promptly left for vacation w/ out leaving a phone number (go figure). XP Pro ...

Ever got stuck with a file that has some mysterious extension? Where no matter how much you try, the Jigsaw puzzle doesn’t seem to fit together? So, for instance, if the file has the extension ...