calc file links braking from pc to mac

These links to other docuemnts, backwards and forwords) seem to brake when opened on excel on a mac. And even though the right setting was set in libreoffice on the origin pc, and the lnks were relative, on the mac even if you re-source them they seem to not work.

Any ideas? or similar issues?

I have started installing libreoffice on the mac now, but have a feeling that might still not resolve the issue…