A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
Excel is not a CSV file editor. If you open or save a CSV file in Excel you have to respect the system settings of your machine.
If you insert a linebreak you break the data structure. If you would use a simple text editor like Notepad you would not claim that there's a linebreak, right?
You can make a suggestion here, but consider Excel works that way for decades.
There are many tools out there to edit or import/export CSV files in/from Excel, e.g.
https://www.dropbox.com/s/m7qdh5gs3wqb99r/CSV.xla?dl=1
But consider: That might solve the issue on your local machine, but there is no guarantee that it works on other machines or if you upload such a file anywhere.
Again:
CSV files are plain text files and therefore can not contain any information about format nor data structure.
Andreas.