I think you should go with eSoftTools OST to PST Converter software because it’s a very simple tool everyone can easily use without facing any issue. Many types of important formats are also available in this tool to convert Outlook OST files such as EML, HTML, EMLX, MBOX, Zimbra, Yahoo, Gmail, Office 365, ICS, MBOX, and vCard. A money-back guarantee and strong technical support are also provided. The email filtering option helps you to convert selective Outlook OST files by date range. Download the free demo version of this tool and get 25 mailbox items from each folder.
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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