If you need to convert OST files to PST efficiently use a reliable tool instead of manual methods. One option I recommend is FixVare OST to PST Converter. It is simple to use and doesn’t require technical expertise. You can also preview items before conversion and selectively export what you need. It supports all editions of Outlook and is effective with every version of Windows. It is therefore a swift and safe solution.
Read More https://www.fixvare.com/products/ost/pst/
Read More https://www.fixvare.com/products/ost/pst/