If you are looking tool that can convert your OST file to PST format without the help of Outlook, you need the highly recommended tool for this. You can use Enstella OST to PST Converter Software with more advanced techniques. This tool allows you to convert OST files to PST format and other formats easily without needing Outlook installed. It is a fast, secure, and user-friendly tool. It's perfect for recovering emails, contacts, calendars, and more items seamlessly.

Read More - https://www.enstella.com/blog/how-to-extract-data-from-outlook-ost-file/

Product Page - https://www.enstella.com/ost-to-pst-recovery.html