How can I access another organizations libraries from a shared Figma file?

I receive Figma files from clients that are linked to their own libraries. They’ve sent their design file but not the libraries files. They also haven’t provided access to their libraries (they no longer work with the company that created the components)

Am I able to create a new library from the components in the existing Figma file? Will that break the variables?

I’m hoping I don’t have to detach everything and rebuild. Ty