stp import

Anyone know a way of importing a Catia .stp file into Blender? I also have a copy of Catia 6 at my disposal. I’ve been trying to export to vrml from Catia, but, for some reason, when I open the .stp file, it only gives me the options to export as .igs or .stp (a bit pointless, as that’s where I’m starting from…).

Any help, advice on converters etc would be very very helpful.