1. Click on the save icon in the bottom left.
2. In the settings have the Column Delimiter to set Other and a comma in the field.
In the row delimiter have it set to Newline (DOS).
3. Have Include column headings checkmarked.
4. Select 'OK'
5. When saving the file save it as a .csv.
If you want to export the entire find have "Export only selected rows" unchecked - Have it checked if you want only selected rows to exported.