Onshape Problem

I am currently using onshape and it’s working fine but my teammate also wants to help me but we can’t find the parts library. Is there any way to just send him my files or how can we find them on onshape.

Skip to around 2:40

There is a lot of files, and I would highly recommend doing the above option.
However, if you want to do it this way:
use the onshape library you have (and own) and share it to him via the blue share button on the top right