FreeCAD supports both import and export of ISO-10303 STEP product data files (.stp, .step) and is the obvious choice for step to fcstd conversion in order to transfer 3D model / CAD data. You can download FreeCAD from SourceForge.
Convert ISO-10303 STEP product data to FreeCAD drawing.
We have found one software suitable in our database for this conversion.
Multiplatform software - convert step to fcstd on any platform
An open source multiplatform 3D CAD/MCAD/CAx/CAE/PLM modeler
Convert from step file format
The table with program actions contains information about what each program is capable of doing with their files. This may be a good pointer for further searches for certain file conversions and help you find the converter you are looking for if our search result is insufficient for you. However, it is far from perfect and may sometimes show results which are not really usable because of the nature of the software handles the files. So a conversion that appears as possible, just because of matched actions, may in fact not be possible.