Please, try to include the updated dhtmlxgrid_export extension on your page.
And try to use the following url to export the data:
myGrid.toExcel('http://export.dhtmlx.com/excel');
Please, try to include the updated dhtmlxgrid_export extension on your page.
And try to use the following url to export the data:
myGrid.toExcel('http://export.dhtmlx.com/excel');