I need to import a huge stl model (size 250 mb) into solidworks, and perform some boolean operations on it. The number of triangles in the stl is also much higher than the 20k limit. Simplifying the stl in Meshlab is not an option, as it is destroying the shape. To find a workaround, I am trying to convert the stl into iges in FreeCAD, and importing the iges in Solidworks. But, the iges is also huge, and is not opening even after 30 minutes in a really fast pc (16 gb RAM!). Any help will be really appreciated!