Conversion of c4d files to stp file format

The most obvious choice for c4d to stp conversion is to use the original software -  CINEMA 4D. You can export from the program to a variety of formats, including fbx, 3ds, obj, Collada, and possibly more. If you do not have access to CINEMA 4D, you have to use some alternative 3rd party software, for example some dedicated conversion solution such as PolyTrans for CINEMA 4D.

Open C4D file    Open STP file

Related software

PolyTrans-for-CINEMA-4D

A CINEMA-4D converter