OST to PST Converter software as it is integrated with multiple features. I am using this powerful tool for over 3 months and have not faced any issue. The free trial version is available for this tool which converts up to 30 items.
Features of OST to PST Tool-
Exporting all your data from OST to PST Outlook
An easy method to Import OST File to Outlook 2019, 2016 & 2013
- no file size limitation
- Message filtration
- get a free preview.
- conversion of Selective item.
- Split option.
More info- https://www.kdetools.com/converter/osttopst/