A file extension, or file name extension, is the letters immediately shown after the last period in a file name. For example, the file extension.txt has an extension of .txt. This extension allows the ...

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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 ...

Apple has released several new and revised Developer Release Notes. We post two examples below. Because of our recent coverage of the file name extensions vs. Type/Creator controversy, we offer an ...

We have commented on the "file name extension" controversy before. We recently tripped over one of its negative effects. It specifically applies to what is covered in the following section of the ...

The MP3 made the iPod possible. Photo: Jim Merithew/Cult of Mac July 14, 1995: The MP3 file format receives its official name as the new .bit file extension gets changed to .mp3. The technology allows ...