Some tools are available in the market, you can search through google or i will recommend OST to PST Converter tool, this software will help you to convert emails from OST to PST file format. Go ahead and download free software.
There are multiple solution available for converting EML to PST Converter file format. You can google this solution. Last time I used a solution for same issue and got great result with this EML to PST Converter tool. I will recommend you to download this EML to PST Converter software from here. ...
