CAD View 3D MFC
This is a great 3D data file viewer. It is designed for CAD users. It supports the most popular 3D CAD formats including STL, DXF and JT. Those formats are widely used by 3D applications including AutoCAD, CATIA, SolidWorks, ProEngineer, IDEAS, UG II, etc. With help of this app, you can take your 3D files with you no matter where you are and view them with your phone (or tablet) directly.