$this->objPHPExcel = new PHPExcel();		zmeniť na
$spreadsheet = new Spreadsheet();
	$sheet = $spreadsheet->getActiveSheet();

$this->objPHPExcel->getProperties()		zmeniť na		$spreadsheet->getProperties()

$this->objPHPExcel->setActiveSheetIndex(0);		vymazať

$j = 0		zmeniť na		$j = 1

$col = PHPExcel_Cell::stringFromColumnIndex($j++);		zmeniť na		$col = \PhpOffice\PhpSpreadsheet\Cell\Coordinate::stringFromColumnIndex($j++);

$this->objPHPExcel->getActiveSheet()		zmeniť na		$sheet

PHPExcel_Style_Alignment		zmeniť na		\PhpOffice\PhpSpreadsheet\Style\Alignment

PHPExcel_Style_NumberFormat		zmeniť na		\PhpOffice\PhpSpreadsheet\Style\NumberFormat

getHighestDataColumn			zmeniť na		getHighestColumn

getHighestDataRow			zmeniť na		getHighestRow

PHPExcel_Style_Fill			zmeniť na		\PhpOffice\PhpSpreadsheet\Style\Fill

PHPExcel_Worksheet_Drawing			zmeniť na		\PhpOffice\PhpSpreadsheet\Worksheet\Drawing

$objWriter = PHPExcel_IOFactory::createWriter($this->objPHPExcel, 'Excel2007');			zmeniť na		
// ob_clean();
		// ob_start();
		$writer = new Xlsx($spreadsheet);

$objWriter->save('php://output');			zmeniť na		
$writer->save("php://output");
		// ob_end_flush();

$objWriter->save($file);			zmeniť na		$writer->save($file);

