The above list should suit most people for those that need something more indepth.
It's not in CSV or other format but with very little effort you can convert it.
https://www.cia.gov/library/publicat...ppendix-d.html
There is a more up to date list from Wikipedia
ISO 3166-1 - Wikipedia, the free encyclopedia
There was another that I used which had a majority fo the formats needed but it escapes me at the moment.
Both the link are site I own so please include me in your credits. Thanks. j/k