Export Excel

Hi Isomorphic,
My export to Excel not working properly. I have more than 12000 records when run shows error "Script execution":

btnEXCELDefaults:
{
_constructor: isc.IButton,
title: mensajesComunesUIDS.getField("boton.gridResultadosBotonExcel").title,
autoDraw: false,
click: function () {
this.parentElement._gridAsociado.dataFetchMode="basic";
this.parentElement._gridAsociado.exportData({
exportAs: "xls",
exportDisplay: "window",
downloadResult: true,
downloadToNewWindow: true,
lineBreakStyle: "dos",
exportValueFields: true
});
}
}
Thanks in advance,
Javier

IE.11
SmartClient V9.1 2014/06/11 PowerEdition