You can quickly use Outlook OST to PST Converter tool which simply works to Convert OST file to PST file. The free unlimited ost to pst converter online is a very useful Outlook email conversion software to make a trouble-free for the users to export OST files to PST. Effortlessly convert your OST Files into PST Outlook as well as another file as , Gmail, Office 365, Live Exchange server, MBOX, MSG, EMLX, EMLX, PDF, NSF, Zimbra, and etc…
There are many third party tools available on the internet for Outlook OST file to PST conversion .
But, If you want to convert your OST file without paying for these Online tools. You can try this manual method which is absolutely free. In this method, some simple instruction are mentioned for easy OST to PST conversion.
To get detailed information, go through this link: https://www.datarepairtools.com/blog/methods-to-convert-ost-to-pst-file-manually/