If you are searching for a simple user interface, I recommend MailsDaddy OST To PST converter software. In this solution, you have multiple advanced features that help to convert OST files into PST and another format with complete data integrity. I will discuss all the advanced features in detail.

Features of MailsDadddy OST To PST:

It works with all versions of Windows os new to older.

Split large OST files into small parts according to your requirements.

Free trial versions carry limited work functionality.

Maintains data integrity during the conversion process.

Export OST files in HTML, MHTML, CSV, PST, MSG, MBOX, EMLX, and others.

You can export multiple OST files at one time which saves your time and space with the help of bulk migration features.

With the help of an advanced filter option, you can filter your email by subject, To, From, CC, and BCC. 

Recover data from the orphaned, corrupted ost file.