Solidworks Part Size Reduction

Hello,
I work under solidworks 2016. There is a piece on grabcad that I downloaded in .step but almost impossible to open it, it is 150 MB. I just need this part in a very light version, without needing exact measurements, simply for schematic diagram in my assembly and my drawing. Here is the link to the piece:

https://grabcad.com/library/milling-machine-deckel-fp1-clone-fus200-infratirea-oradea-1

I've tried everything with chatgpt but given the performance of my pc I can't get anywhere. Can anyone help me please?

Anthony