3D-Tool 13.20 updated The 3D-Tool Free Viewer can open and view STL files and native 3D-Tool files (EXE/DDD) 2D and 3D. It has a lot of the same features as 3D-Tool Basic and Advanced, such as Cross Section, Measure/Markup and Explosion. The 3D-Tool Free Viewer is a... 14 Aug 18 in Graphic Design Software, 3D Modeling Software Windows read more