OST (Offline Storage Table) files are offline copies of Exchange server mailboxes, enabling offline access and sync. PST (Personal Storage Table) files store Outlook data locally, used for archiving, backup, or separation from the server. OST relies on server sync, while PST operates independently. #pst #ost #convert
https://www.mailsdaddy.com/blo....gs/ost-pst-differenc

Difference between OST and PST

How to change OST file into PST file?