How does this improve on RFC 4180? (I only _wish_ excel and many other parsers behaved predictably like that RFC, but it is a decent proposal. )
Just for the record to quote from the memo:
This memo provides information for the internet community. IT DOES NOT SPECIFY AN INTERNET STANDARD OF ANY KIND. IT DOES NOT SPECIFY AN INTERNET STANDARD OF ANY KIND. IT DOES NOT SPECIFY AN INTERNET STANDARD OF ANY KIND.
Just repeating it three times in case you missed it, see https://www.ietf.org/rfc/rfc4180.txt