How to use the 3D model downloaded in STEP format in Altium Designer?

Hello there,

Thanks for reaching out.

Would you kindly let us know the part that you're trying to import in a STEP format?

That being said, please read the article in the link below, which will explain how to import 3D models into Altium Designer:

https://support.snapeda.com/en/articles/3334285-how-to-import-a-3d-model-into-altium

Please let us know if it helps!

Thanks!