Hi @LaceyMW ,
Thanks for your reply!
How did you get the .pst file?
And how did you access the .pst?
Generally, we can export the mailbox in Outlook from your old device and then import the .pst file to Outlook in your new device. Please refer to the below article to calendar to your Outlook on new computer:
Export emails, contacts, and calendar items to Outlook using a .pst file
Import email, contacts, and calendar from an Outlook .pst file
Hope to help you!
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