One of our suppliers wants to send us Pro-E files instead of iges files. They've sent us a small test of an assembly which has come as several files of course, but none of them load into CAD Process 7.0. We've tried the .asm.1 and prt.1 files and although it seems to recognise them at first, when it's actually loading the files it gives an "Error during reading of..." message. I've looked in vain through the documentation and PTC's website to see what version of Pro-E Isodraw 7.0 supports. Our supplier is using Wildfire 4.0. Is it simply that we're trying to load files that are not supported in Isodraw 7.0?