Hi, I am using SolidWorks 2012. I have an assembly created by somebody else in Inventor. I exported it as STP under Inventor 2013. When I imported to Solidworks, it took half a day. After the import, some of the objects became a big sphere. Know what is going on? I then saved a sub-assembly from Inventor and imported to Solidworks. I tried to use Feature Recognition. However, SW reported that "FeatureWorks. Part contains overlapping solids. FeatureWorks can not proceed further." In the tree on the left, I see a list of Imported objects. I cannot even edit those objects. Can anybody please help? What is the best way to import design created in Inventor to SolidWorks anyway?