How to convert ost file to pst file format using third party software

You can also try stellar.co.in converter

I want to recommend you to use MailsDaddy OST to PST Converter

If you are able to acccess you profile then you can also perform manual conversion from OST to PST.

Third party softwares offers easy way to convert ost to pst. The process will differ from tool to tool. Decide what you want to use. You can check our the guide on Top 10 OST to PST converter tool on CloudBik's Blog Page.