Best customers mass export

Hi,

I don't see any easy solution here.
You'll have to add custom code in the function "csv" of the file administrator/components/com_hikashop/classes/widget.php to load the address data for each user with an extra MySQL query or two, process the data and add it to the CSV data being processed by that function.
So it would require a skilled PHP developer to work on that. And since it's a core file, it would require redoing the modification after each update of HikaShop, or doing the modification as a plugin overriding that class, which is possible but more complex and thus pricier to implement.