Convert Exchange mailboxes to PST using Exchange Admin Center
To convert EDB mailboxes from Exchange Server 2016, follow the steps:
Open Exchange Admin Center, go to the recipients, and then select mailboxes. You will get a complete list of mailboxes.
Right-click the mailbox you want to export and select the Export to a PST file option.
In the Export to a .pst file dialogue box, Browse and select the required mailbox. Select the desired option and click Next.
Provide the destination where data needs to be saved. Click Next to continue.
Select the given checkbox and provide a mailbox name to receive the email notification.
Now, click the Finish button.
Hope You Find This Useful,
Peter