CATIA V4/V5 Pro/ENGINEER Unigraphics SolidWorks Inventor Parasolid STEP IGS VDA SAT
CATIA V4/V5 STEP IGS VDA SAT / SAB STL
In addition 3D-Tool lets you save every model as STL, VRML, 3DS and PLY file and publish models as 3D-PDF file.