There is only one file type that uses the .MODEL extension:
CATIA 3D Model FIle
3D modeling format used by CATIA (Computer Aided Three Dimensional Interactive Application), a 3D CAD/CAM program; used for building molds, dies, composites, and other types of models.
Industries that use CATIA models include industrial machinery, automotive suppliers, aerospace suppliers, shipbuilders, and machining companies.
Updated: September 30, 2008