Actually, I worked on OpenAddresses, a project to parse thousands of CSV files containing address data from many different county, state, and national systems a

Actually, I worked on OpenAddresses, a project to parse thousands of CSV files containing address data from many different county, state, and national systems around the world. It really wasn't that hard, even Python's basic csv parser was sufficient to the task (and there are plenty of better options). CSV is remarkably robust in practice.