cyber-duck / laravel-excel创建没有列标题的导出

I have the following code for Laravel to export a member list as Excel file:

$query = DB::table('tbl_members')->select('ID', 'DOB');

$excel = Exporter::make('Excel');
$excel->loadQuery($query);

return $excel->stream('Members.xlsx');

But using above code, I'm returned an Excel file without any headings and column names.

So what I want is an Excel file which contains the column names in the first row as headings.