You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
Use DRSOST to PST Converter for the most sufficient and reliable tool to convert OST files into Outlook PST files. You can get so many advanced features like a mail filter, preview data, and removing duplicate emails. It also provides the option to add multiple files at a one-time conversion. It has a simple and attractive GUI for users so that they can easily complete conversion.