I utilized the eSoftTools OST to PST Converter Software to convert OST to PST files. It’s the best solution for the OST Conversion Tool. This software simply converts your Outlook OST file without any difficulty. It permits the conversion of OST file data to PST and other formats such as Office 365, Yahoo, Gmail, Zimbra, vCard, HTML, MSG, ICS, EMLX, EML, and MBOX. It also works with all Windows OS and MS Outlook versions of 2019, 2016, 2013, 2007, 2010, and 2003. Use this software free of charge because it also comes with a free trial pack.
If you're looking for the best OST to PST converter tool, I recommend SysInspire OST to PST converter tool, which can restore and recover corrupted OST files data such as addresses, contacts, calendars, tasks, notes, dates, and even deleted emails. PST, EML office365, MBOX, MSG, EMLX, vCard, and live exchange server are just a few of the file formats supported by this tool. MS Outlook 2003, 2007, 2010, 2013, 2016, and 2019 are all supported by the OST to PST framework. It offers a free trial version that allows you to convert 30 emails from each folder.