bulk import multiple addresses

I have 800 customers that drop ship to multiple locations. In all there over 7800 unique shipping addresses. Some customers have 5-10 locations they ship to and some customers have as many as 125 locations. It will take a life time to manually enter all of this data. Is there a way to bulk import all of this data? And if so what does the template for the csv file need to look like?

https://www.ads-software.com/plugins/woocommerce-multiple-addresses/