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 ...

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 ...

Whenever Windows XP or Vista run across a file type the system doesn't recognize (regardless of whether you do or not), the user is prompted with either selecting a program to open it or to "Use the ...