Ever received a CAD file that you just can't open? More likely than not, it is saved in a newer version of AutoCAD. Before calling your consultant or client for a "down saved" version, download DWG TrueView by Autodesk. If you are running on a 64 bit version, click here.It's free and easy. Open your file with this program and save it down to whichever version of CAD you currently have in your computer.