A file format is a generally recognized structure for storing data within a file. Think of it as a standard way of recording information so that other programs can recognize it. Software programs read and write to files in a specific way, based on the file format. Because file formats are typically associated with a specific software program, you may not be able to open a certain file if the corresponding software program is not installed on your machine.
- FileInfo.net – The File Extensions Resource Searchable database of file extensions with detailed descriptions.
- File Extensions Reference — Alphabetical listing of file extensions; identifies program(s) that open each file type.
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