Here I am introducing another an advance software which can convert your OLM file to PST. This utility easily convert Mac Outlook email attributes like emails, contacts, calendars, hyperlinks, emails attachments and other items into MS Outlook PST format.This software save and recover into a new file of any of these formats: PST, EML, MSG file format.
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http://www.olmtopstconverter.edbtopst-converter.com/