EmailPro Help OST to PST Conversion Tool is a highly efficient utility designed to convert OST to MBOX and also convert OST to PST and other formats like MBOX, PDF, JSON, and more, with 100% accuracy and no data loss.

This versatile software allows users to import OST to Office 365 and convert both single and multiple OST files, and export emails, contacts, calendars, tasks, and notes to various formats including PST, MBOX, EML, EMLX, HTML, CSV, and MHTML. Additionally, it supports exporting OST items to over 15 web-based email clients, Gmail, Thunderbird, and Yahoo Mail, making it a comprehensive solution for OST file conversion.