Does anyone know how I could do a quick and easy syncing of my old Outlook contacts that now reside on my device but no longer have access to through the company outlook server(no longer work there), to my default Google Contacts on the device?

I have tons of Contacts under the Outlook profile on my device some Internal with my former company and some external that I’ve acquired in my 20 year work history. I don’t want to lose those but I also want to stop the constant pings that say my Outlook credentials are incorrect.