what modeling software can open solid files
The Programmers Solid 3D CAD Modeller. OpenSCAD is a software for creating solid 3D CAD models. It is free software and available for Linux/UNIX, Windows and Mac OS X. Unlike most free software for creating 3D models (such as Blender) it does not focus on the artistic aspects of 3D modelling but instead on the CAD aspects.
Re: Opening solid parts in Master Cam. Could be due to the newer parasolid version in SW2011. I know we have issues at times when the parasolid version is much higher than the MasterCam version. I only export parasolid files (do not send native SW files) to the shop but it gives me the same message.