I want to suggest you eSoftTools OST to PST Converter software because this tool Convert your OST file data mailbox with emails, tasks, notes, calendar, contacts, and etc to PST, HTML, MBOX, EML, MSG, ICS Yahoo, Gmail, Office 365, vCard, EMLX, and Zimbra. And if you want to Convert a big-size OST file to PST and any other formats so you can easily convert it. Try the free demo version of this tool for see software working process with complete steps and also software recover 25 items from the OST file every folder.
Read More- eSoftTools OST to PST Converter Recognized With 2019 Industry awards
stella ost to pst recovery software is the best software to recover all ost file data in to pst file this software is recover all corrupted and unmounted ost mailbox items in to pst file this software is support all version 32bit and 64bit ost file this software is recover all ost items like emails, contacts, calendars, task, notes and many other items in to pst file. for more info visit this link https://www.stelladatarecovery.com/ost-to-pst-converter.html