I'm working with SolidWorks 2012 and wish to export an assembly so that a colleague abroad using CreoElements and/or Inventor (AutoCAD) can view and edit it. I can easily make a STEP file that he can see, but all the components are loaded for him as surfaces, instead of solid bodies, thus "forgetting" the links that tie them together and making it much harder to edit and move small pieces within the assembly. The ProEngineer part worked well but the assembly analogue failed to open. Other formats were similar to STEP and did not create solid bodies. My colleague suggested that something called "part resolution" may be at fault, since he had people save STEP files in AutoCAD and was able to open those just fine. Does anybody know about how to increase this part resolution, or if the issue can be solved in another way?