Microsoft Outlook uses two file types for holding message, calendar, task and notes data: PST and OST files. PST files are created in the user's computer for non-Microsoft Exchange accounts ...

Just before we start, Outlook can store data in two types of files- PST and OST files. While both formats can save emails, calendars, and contacts, OST is created when using IMAP or Exchange ...

Once done, you can proceed as follows: If an Outlook data file is corrupted, you need to repair corrupt Outlook PST & OST personal data files using the Inbox Repair Tool. Microsoft offers the ...