I work with solidworks 2017. Designed an assembly and sent it to a peer engineer who uses solid version 2015, as a parasolid file, x_t.

He changed it a bit and sent it back to me as an x_t file. I opened it and converted it back to SLDASM file.

Now I want to save parts from the assembly individually, and there is no "save externally" option when I right-click on the part.

Is there a different way to do it? How can I fix the problem?

Thanks !!