TurboCAD Mac 10 can easily import TCM files from version 7, 8 and 9, as well as older versions of TurboCAD Mac, versions 1, 2, & 3. Files from TurboCAD Mac 4, 5, and 6 need to be saved to .DWG for import into this version. Files from TurboCAD for Windows will also need to be converted to dwg for use by TurboCAD Mac.