Merge all: check this box if you want to merge all events from multiple selected calendars into a single worksheet.
Sum all: check this box if you want to show the total calculated sum of all durations in your exported calendar/s.
Additional fields:Â check the fields that you want to be exported into your calendar here.
Day Total:Â Checking on this field will calculate the total number of days that of your google calendar events.
Display Name: Relevant If you exported Google Calendar/s  contain fields such as: “Created By:”, “Organized By:”, “Attendees”, and “Email” and your person is used in these fields.
You have the option of either  having your Full name OR Email Address exported in these fields.