Convert an XML File to CSV with Python - Supports Nested XML 

Yes, you should be able to use the stylesheet to deal with that using a for-each. Unfortunately that's not a format that converts very well to a table. You either have to have a fixed number of addresses in the table each with their own column(s) and nulls for accounts that don't have that many addresses, or a single address column and multiple entries for any account with more than 1 address.