The problem is windows doesn't have a preloaded double click viewer for csv except excel if you have Office. The average user just double clicks. If notepad or wordpad did any kind of formatting for viewing it would be less an issue. So you have to solve for excel as a dev knowing that's what 99% of people will use.
If you 'solved for Excel', it will be broken for the other applications that may want to use data from those Excel-specific CSV files, which is generally why CSV was chosen in the first place.
