File Extension

CFG File Format

Configuration file

CFG is a configuration file format used for storing settings. CFG files are created by many programs to store information and settings that differ from the factory defaults. CFG files usually appear as text documents, and can be opened by word processors though it is not recommended.

The editing or deletion of a .CFG file outside of the program it was created by will affect the settings in the program and how it runs. If one wishes to set a program back to the factory settings, however, moving or deleting the .CFG files will do so.

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This was last updated in July 2010
Editorial Director Margaret Rouse

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