I think most people hold RFC-4180 to be the CSV standard, even if it’s not officially a standard. It is sufficiently parametrised to suit all variants while at

I think most people hold RFC-4180 to be the CSV standard, even if it’s not officially a standard. It is sufficiently parametrised to suit all variants while at the same time providing a language and structure that is portable across all. Don’t get hung up on the fact that RFC’s aren’t officially standards. It’s a publicly accessible standard which many people fall back on as a reference, which is more than you can say for a lot of ISO standards.