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At this point, who doesn't know or used to using file extensions? We see them every time we save or download a file or even download a program that helps to show or change those extensions.
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Guide to File Extensions

Do you know what a file extension is? In most cases, you work with them all the time - when you decide if you want to send yourGuide to File Extensions boss a Word file that's .doc or .docx or if you want to download either a .jpeg or a .gif. File extensions are what are used to tell the computer (and you) what the file is.

In this guide, we'll not only look at the different types of file extensions that you can have and find, as well as those types of programs that can be used to open or view these types of files.

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