If you want an easy and trusted method to migrate from BigRock to Office 365, you can use the CloudXena IMAP Email Backup Tool. This software not only helps in backing up IMAP-enabled email accounts but also allows you to export emails into multiple formats such as PST, MBOX, EML, EMLX, PDF, MSG, and HTML for seamless compatibility with various clients. It further enables direct migration of IMAP emails to Office 365, Gmail, Yahoo, Zoho Mail, and other IMAP servers. With features like mail filtering for selective backup, duplicate email removal, and folder hierarchy preservation, it ensures accurate and organized results. Its user-friendly interface, batch backup support, and compatibility with all Windows OS versions. 

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