This RFC documents the format used for Comma-Separated Values (CSV) files and registers the associated MIME type "text/csv". This memo provides information for the Internet community.
I noticed a repository’s .gitattributes entry for *.csv used text eol=crlf so I investigated and found this.
Unless you open it in Excel. In which case bad things will happen no matter what you have in the CSV…
If I am using Excel, I am using Windows and I will be changing all text to use CR-LF newline format (if sending from a Linux system) anyway.