File Extension List
New applications are constantly being produced and it is important for our system to be able to tell what kind of file it is accessing. That is exactly what a file extension is for!
To determine which program to access a file with, your computer starts by gathering the needed information by examining the files extension. A files extension holds clues to the formatting of the file and what kind of information it contains. For example, some general file extensions include: .tga for pictures, .rar for compressed files, and .avi for video. You might already be familiar with these typical extensions but with the ever growing library of software and operating systems there are a lot more that you might have never seen.
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