Best Extension for solidworks file

Can anyone tell me which is the best extension for Solidworks part models

2 Answers

It depends on what you'll do with the model...

If you're not going to use the files in a direct way (i.e. a proof of concept, an animation, a rendering, a project you'll never make), native SolidWorks file formats are the best option as they'll preserve the whole feature tree (SLDPRT).

If you're going to 3D print the model, you'll need a file format that works best with mesh files (STL, OBJ, AMF, 3MF).

And so on...

Depende muito da sua proposta. Eu trabalho com STEP muito bem.