I was able to build an iCal file out of singular SharePoint events, but when it comes to recurring events, I can't seem to find a way of using the Query List action to query for the so-called "RecurrenceData". It's not a field I can just export.
The ultimate result must be an .ics attachment of a recurring meeting invite, like described in https://community.nintex.com/servlet/JiveServlet/download/3481-1-17225/NxWF_CreateAppointment.pdf
But I need it for a recurring event. Also, I need it to export neatly into Google Calendar, not Outlook.