OLM file is an Outlook data file in Mac Computers. To import Outlook emails, contacts & other data from olm file into MS Outlook for Windows you need to convert OLM file into PST file as Windows Outlook doesn’t support olm file.
There are few manual long methods to convert olm to pst file but these methods are complicated and time taking. There is also risk of data loss while performing these steps.
For quick and easy olm to pst conversion, you can use a third-party software OLM to PST Converter. This tool can convert OLM file to PST, EML, MBOX, MSG, HTML, PDF, RTF, & vCard formats & also capable to directly import Outlook messages and other data into mail servers like Office 365, Exchange & Gmail.