In jqwidgets-ver14.0.0-src.zip in the PHPExport/data-file.php file there is a typo: 'cvs' => 'text/plain'
it should be 'csv' => 'text/plain'
Trying to export a CSV otherwise spits out an error at line 15
yes I tried that some time ago, but when exporting as xls I was unable to also export colored rows/columns.
This is a mandatory customer requirement, so I’m sticking with the old method for now.