Notes about the TB file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The TB file type is primarily associated with 'Rhino 3D' by Robert McNeel & Associates. Rhino3D is a NURBS-based modeler for Windows. Earlier versions use .WS3 for the toolbar.