What is .TC3 file?
Drawing created by the Mac version of TurboCAD, a CAD application used for drafting architectural and manufacturing designs; stores a 2D or 3D drawing, including drawn objects, measurements, and display properties; often used for storing mechanical and manufacturing component designs.
NOTE: TurboCAD two-dimensional designs are stored as .TC2 files. Both TC2 and TC3 files are only used by the TurboCAD Mac editions.
Recommended Software Programs to open .TC3 file