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File Extension List

Our system needs to know how to access specific files and specify what applications they are associated with. That is precisely what a file extension is used for!

The information required to choose which program to use to access a file is learned from the files extension. Data about the type and format of data contained inside a file is designated by a file extension. A few of the more common file extensions include .exe for executables, .wav for audio, and .doc for documents. You might already be familiar with these common extensions but with the always growing library of programs and operating systems there are many more that you may have never seen.

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