If you're looking to migrate PST files to Office 365 manually, you can use the Microsoft Exchange Online PST Import Tool or upload them via Outlook Web App (OWA). However, the manual method has drawbacks—it can be time-consuming for large files, risks data loss if not done correctly, and requires technical expertise for proper folder mapping. Instead, a more efficient and reliable solution is the "Cloudmigration PST to Office 365 migration Tool," which automates the process, ensures secure transfers, and maintains folder structure without any hassle.

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