Legend:

X: Yes	AL: Alias - Studio	PE:  PTC - Pro/E
-: No	CT:  Dassault - CATIA	SY: T-Systems - CATIA
?: Not sure	ID: PLM Solutions - IDEAS	Tx:  Theorem - CADDS, CATIA, Unigraphics
E: Export	IN: Auto Desk - Inventor	UG:  PLM Solutions - Unigraphics
I: Import	OC:  Open Cascade