How to transfer PST files to Mac Outlook without alteration of any file? Go to the installation of Outlook PST Converter Tool, which can help out in the process to export Outlook emails into mac Outlook. Even this tool also capable to import Outlook mailbox to OLM including contacts, emails, calendars, etc. MS Outlook installation is not compulsion to perform the conversion process. To transfer PST files to Mac Outlook, users can also grab its free trial version facility, which facilitates for first 25 Outlook items to OLM conversion free of cost. All Windows version are suitable to access this advance application.