private function _getExportHeaderArray(array $aArguments, $sFileName, $mData)
{
$_aHeader = array('Content-Description' => 'File Transfer', 'Content-Disposition' => "attachment; filename=\"{$sFileName}\";");
return $this->addAndApplyFilters($this->oFactory, $this->_getPortFilterHookNames('export_header_', $aArguments), $_aHeader, $aArguments['pressed_field_id'], $aArguments['pressed_input_id'], $mData, $sFileName, $this->oFactory);
}