We provide Open Data Exchange (ODX) libraries to read and write native CAD data. File formats currently supported include CATIA V4, CATIA V5, CATIA V6, NX, SOLIDWORKS, Pro/E, JT, Solid Edge, Parasolid, ACIS, IGES, STEP, 3D PDF, VDA, and STL. Applications developed using ODX libraries are independent of CAD. The ODX libraries are very robust and are currently being used by a number of leading MCAD software ISVs. The libraries, written in C and C++, are easy to implement and follow software releases via continuous updates.