+A **file type** is a classification that identifies the nature or format of a computer [File](/wiki/file). It guides an operating system or application on how to interpret the contained [Data](/wiki/data), often denoted by its file extension.
+## See also
+- [File Extension](/wiki/file_extension)
+- [File Format](/wiki/file_format)
+- [Operating System](/wiki/operating_system)
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