private static function excel()
{
$collection = self::post('collection');
$name = 'filtros_reportes' . rand(1000000, 9000000);
$excel = new Excel();
$excel->setName($name);
$excel->setProp(array('title' => "filtros"));
$excel->setFiltrosFormat($collection);
$excel->create();
$dir = $excel->getDir();
if (file_exists($dir . "/" . $name . ".xlsx")) {
echo $name . ".xlsx";
} else {
echo "false";
}
}
