The best way to convert OST to PST in Outlook 2016/2013/2010/2007 is by using the best solution eSoftTools OST to PST Converter software. This tool recovers OST mailbox items including emails, tasks, contacts, journals, calendars, etc. Also, it shows a live preview of recovered OST mailbox items you can recover and convert OST files with 100% satisfaction. This tool splits the large PST file into a small PST folder without making any changes.
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if you search any ost to pst converter software and not find any ost to pst converter software try stella ost to pst converter software to convert all ost mailbox items in to pst file this software is convert all 32bit and 64bit ost file this software is convert all ost mailbox items using some simple steps. This software is convert all corrupted and unmounted ost mailbox items in to pst file. for more info visit this link https://www.stelladatarecovery.com/ost-to-pst-converter.html