You can find EmailsGuru OLM to PST Converter most useful and automated. It is designated tool to convert OLM files to PST format with complete mailbox data and attachments. This tool kept intact all data integrity and original folder hierarchy throughout the conversion process. It is completely professional to convert or export OLM files into PST format, which enable users to access or import their Mac Outlook data into Windows Outlook. It is fully supportable to all versions of Mac Outlook as well as Windows Outlook. Users can smoothly install and run this tool on both Mac and Windows Operating Systems.
For more info- https://www.emailsguru.com/olm/pst/