Sometimes users require Migrate OST to PST format in such situation OST to PST Convert Utility is the ideal explanation. You can easily convert OST file to PST, included 14 plus formats like- PST, Zimbra, Gmail, vCard, ICS, office MSG, EML, EMLX, MBOX, PDF, NSF, and etc. file formats without the required of any other application. The software provides a perfect user interface, so understand and work with a tool is not a difficult working process for conversion. Its smoothly Split option is also helpful if the user has the large size of the PST file.
More info- Microsoft ost to pst converter
Try stella ost to pst converter freeware software to convert your ost file data in to pst file. Stella ost to pst converter freeware software convert all the ost items in to pst file. Stella ost to pst converter freeware software convert all the items of the office 365 account. For more info visit this link https://www.stelladatarecovery.com/email-migration/ost-to-office-365.php