The MigrateEmails PST to Office 365 Migration Tool is designed to efficiently migrate PST files to Office 365, including Primary, In-Place Archive, and Public Folders. This tool allows simultaneous migration of multiple PST files to both admin and user accounts while maintaining data integrity. It offers useful features like duplicate email removal, selective migration based on date range, and the option to exclude attachments. Users can preview mailbox content before export, and the interface is user-friendly, making the tool accessible for all levels. It supports all Windows OS versions and includes a demo for testing functionality.