Hi,
Thank you for your update.
Currently, there is no build-in option in Outlook Mac which let you export the addresses from your Auto-Complete cache or convert them
directly into Contacts.
You could also visit the Outlook user voice forum:
https://outlook.uservoice.com/ to vote for a similar idea or post your own.
It is a place for customers to provide feedback about Outlook. What’s more, if an idea is high voted there by other customers, it is promising that Microsoft Product Team will take it
into consideration when designing the next version in the future.
Thank you for your understanding and support.
Regards,
Perry
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