Files that contain the .col file extension are most commonly associated with the Grand Theft Auto III, Vice City and San Andreas video games. These files contain collision information for objects that are contained within the associated video game.
The COL files that are used by these video game applications determine the location and the extent of the object damage during a gameplay collision.
The Lotus Notes software application has also been known to use the .col file suffix. Lotus Notes is a collaboration software that was created by the Lotus Development Corp, which was later acquired by IBM. The COL files that are used by this program contain column description files that are referenced by the Lotus Notes software.
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