Transfer to New Device

Hi.

We have a iphone 7 here at work that is being replaced with an iphone 12. We need to get all of the contacts off (~250), however when it was set up originally it was setup with a Gmail account as the Apple ID, which now no one knows the password for, which is unfortunate. I have tried to export the contacts to a sim, however Sim isn't an option in the settings.. Does anybody have a way we can get these off ? In case you cant tell i'm not an apple user, just the poor sap that's been left with sorting out the problem.

Cheers