There is only one file type that uses the .TC3 extension:
TurboCAD 2D/3D Mac Drawing
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.
| Software's name | License | Platforms |
|---|---|---|
IMSI TurboCAD for Mac |
Commercial |  |
Updated: June 6, 2010