You can easily import OLM to Office 365 using the MacSonik OLM Converter Tool. Simply install and launch the tool, add your OLM files, and select Office 365 as the saving option. After signing in with your Office 365 credentials, apply filters such as date range or duplicate removal if needed, and start the migration. The software securely imports all mailbox items — including emails, contacts, and calendars — while preserving folder structure and data integrity. With features like batch conversion, multiple format support, and a user-friendly interface, MacSonik OLM Converter offers a fast and reliable way to move your OLM data to Office 365.
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