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File Extension List

New applications are always being created and it is important for our personal computer to know how to distinguish what kind of file it is accessing. By viewing a files extension, our personal computer recognizes precisely how to make use of that file.

The information needed to select which program to use to open a file is read from the files extension. Data about the format and type of data carried inside a file is designated by a file extension. As an example, many typical file extensions include: .gif for images, .rar for packed files, and .avi for video. You might already be familiar with these typical extensions but with the always developing library of programs and operating systems there are a lot more that you may have never discovered.

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