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 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 ...

The IRS' Form 4868, "Application for Extension of Time to File U.S. Individual Income Tax Return," is seen here. The IRS' Form 4868, "Application for Extension of Time to File U.S. Individual Income ...

If you're one of the millions of Americans who have procrastinated filing their taxes ahead of the April 15 deadline, there is a way to get some breathing room: File for an extension. The step gives ...