By default, the grid csv data export will put double quotes around fields in the CSV export.
This value can be set to a character which will be used instead of a double quote. Alternately, it can be set to an empty string to omit the quote entirely.
This option requires Profound UI Version 6, Fix Pack 9.0 or newer.
Example:
pui["csv string delimiter"] = ""; // no quotes added - or - pui["csv string delimiter"] = "'"; // use single quote
Where do you save this configuration option? Here.