SharkCAD Pro, a program that's now under the same ownership as TC, has translators for SW, CATIA 4 & 5, Pro/E, Solid Edge, NX and Parasolid. I needed some translation a few years ago and at the time, maybe 10-15 years back, IMSI was offering a translator for some of those in and out of TC - for USD1000. Ouch. Shark is a premium version of TC Mac that's also PC. Files exchange with TC Mac with a change of attachment, but some of the high-end translators don't work with Shark on Mac. The Shark/TC Mac file extension exchange thing also works with Vellum Cobalt, too, if anyone still works with that.
Exchange between TC and Shark covers .dwg, .sat, .stp and iges.
Interestingly, the .step file is a little smaller converted with it than Don's.