If you are looking for a solution to convert OST file to PST then I would recommend you to use CubexSoft OST Converter on your system. The software directly allows you to export OST to PST. It preserves data integrity and the structure of emails during OST to Outlook conversion. It comes with a simple initiative interface that is helpful for all types of users.
Read More – https://www.cubexsoft.com/ost/