I notice the same behaviour with current Calibre 0.8.22. Regardless which fields I choose to export, the first column is always unescaped and all subsequent are escaped with "".
Example 1:
Code:
formats,size,title
epub,"334116","Feuermagie"
Example 2:
Code:
authors,formats,rating,series_index
Shana Abé, Marianne Schmidt,"epub","7","1.0"
Strange enough, this seems to be an Excel (2010) problem. When opening the csv with notepad, all columns are escaped.
Kind regards