My main problem with passwords is the limits that sites put on what I can set for a password.
I could not tell you how many times I reset my password using my password manager, then immediately log out, and log in using the credentials I just saved into my password manager, and they don't work, because the site is truncating the password to 15/20/whatever characters.
The number of times this limitation is not clearly stated, checked for, or even acknowledged by the site is too damn high.
I've made it a habit of testing a login after every password set/reset to ensure I don't have trouble with it in the future.
The CSV cells are escaped with quotes. So just maybe throw some quotes in too. Unbalanced for style points. It won't defeat a CSV library, but might break a script kiddie
The CSV specification (RFC-4180) is pretty clear. If a value contains commas, you wrap it in double quotes. If the value contains double quotes, you double each double quote to indicate its part of the value and not the end of the value.
A properly formatted CSV should have no problems from Skeletor!