' . var_export($loaded, true) . '' . "\n";
//$loaded = class_exists($sheetClazz);
//echo '' . var_export($loaded, true) . '
' . "\n";
$sheet = WBClass::create($sheetClazz);
$sheet->setActiveSheetIndex(0)
->setTitle('Hello World')
->setCellValue('A1', 'Hello World');
// echo '' . var_export($sheet, true) . '
' . "\n";
// $writerClazz = 'PhpOffice\PhpSpreadsheet\Writer\Xls';
// WBClass::load($writerClazz);
// $writer = new $writerClazz($sheet);
//
// echo '' . var_export($writer, true) . '
' . "\n";
$path = WBParam::get('wb/dir/base') . '/var/tmp/foo.xls';
$writer = PhpOffice\PhpSpreadsheet\IOFactory::createWriter($sheet, 'Xls');
$writer->save($path);