The most easiest and convenient way to produce .catpart files is to use CATIA of course, but you may also find other CAD software with CATIA support. Models saved in ISO STEP product data files (.stp, .step) are well supported, so you should have no trouble in performing stp to catpart conversion.
Convert ISO-10303 STEP product data to CATIA part data.
We found 4 software records in the database related to .stp to .catpart file format conversion.
Microsoft Windows software - convert stp to catpart on Windows
A PLM/CAD/CAM/CAE software suite
Convert from stp file format
|Yes, CATIA supports stp file conversion as a source file type.||Yes||Yes||stp editor||No||No||Yes||No|
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned stp to catpart. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A CAD converter with huge format support
A dedicated CAD converter
A CAD visualizaton, analyzation and translating system