Microsoft Outlook stores the information in the mailboxes in two primary file formats: OST and PST . OST files let users work offline and sync changes with the Exchange Server once connectivity is restored.
When Microsoft Outlook data becomes inaccessible due to corruption, server issues, or orphaned OST files, users often struggle to recover their important emails, contacts, calendars, and attachments.
The Microsoft Outlook application uses OST files to store its mailbox information which enables users to access their emails when not connected to the Exchange server and later synchronize their updates.
Users of Microsoft Outlook frequently need to perform an essential task which involves converting an OST file into a PST file. Microsoft Outlook creates OST files when users access Exchange Server or Office 365
