Hi Paul,
Please try the steps below:
1. Open the PST file in Outlook.
2. In Outlook, go to File > Open & Export > Import/Export > Export to a file, Next, Comma Separated Values.
3. Select the folder you want to export, Next, browse to choose a location to save the .csv file, click Next and Finish.
Hope the above information can be helpful.
Regards,
Yuki Sun
Please remember to
mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact
tnsf@microsoft.com.
Click
here to learn more. Visit the dedicated
forum to share, explore and
talk to experts about Microsoft Teams.