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To migrate OST to Office 365 format, you can utilize SysInspire Free Unlimited OST to PST Converter, a well-designed program. This utility allows users to convert OST objects including addresses, contacts, notes, journals, assignments, schedules, and more. All versions of Microsoft Outlook, including 2003, 2007, 2010, 2013, 2016, 2019, and others, are supported. This program is easy to use and transforms OST files quickly. With this program, you can convert large and huge OST files to PST files without losing any data. You may also convert your OST file to PST, MBOX, EML.EMLX, Office 365, and more formats.

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