Yes but then the text is not human readable or editable in a plain text editor.
This would confuse most users of csvs they are not programmers they at most use text editors and Excel.
This would confuse most users of csvs they are not programmers they at most use text editors and Excel.
I am pretty sure you shifted the meaning, the decimal separator is part of the atomic data it does not need a control character.
You would use 1F instead of the comma/semicolon/tab and 1E to split lines (record means line just like in SQL).
You could then use 1D to store multiple CSV tables in a single file.