If you are searching for the best tool to convert OST file into PST file format, then i would suggest you to try the Cigati OST Converter Software. It is the ultimate tool to export your OST file into PST, MBOX, MSG, EML file format with great ease. This application also allows the users to import all your OST file data into PST file format.
Read More: https://www.cigatisolutions.com/ost-converter/