Stellar Converter for OST - powerful software to convert inaccessible OST files to Outlook PST files. The software is trusted by Microsoft MVPs and converts all mailbox components - emails, attachments, contacts, calendars, etc with 100% precision. It supports Outlook 2019, 2016, 2013, 2010, & older versions. Converts large OST files to PST - no file size limitation Converts encrypted OST to PST. Also converts IMAP OST file Easy export of OST files to Office 365 & Live Exchange (Technician Edition) When to use Stellar Converter for OST? Export OST to PST When you delete a user mailbox from Exchange and there is no backup copy, the only way to access the mailbox data is the OST file. However, you cannot recreate or restore the OST file if the Exchange user account has been deleted from Active Directory. Stellar OST converter tool converts the inaccessible OST file into PST file that can be further imported into Exchange Server. Manage data files with Stellar Toolkit for Outl...