Hi James,
From your description, I understand you to help you import .olm files to Outlook 203.
If this is the scenario, after consulting our senior members and doing some research, there isn’t any official document about this feature for the time being.
I can fully understand how you are feeling now and sorry for the inconvenience it may bring. Anyway, at the same time, I will also continue doing some further tests and research.
Thanks for your understanding ,enthusiasm, and working closely with us.
Any community members with related experience of this issue who could share it here are also appreciated.
Regards,
Xinyu Zhou