- Joined
- Jun 18, 2025
- Messages
- 2
- Reaction score
- 0
You may need to convert PST to OST when you're looking to restore or synchronize Outlook data with an Exchange or IMAP account. PST is used for local backups or data exports, while OST is the format Outlook uses for offline access to mailbox data connected to a server. Converting PST to OST helps ensure that your emails, attachments, and folder structure can be accessed and synchronized properly with your Outlook profile in an Exchange or Office 365 environment.