<?phpusePhpOffice\PhpSpreadsheet\IOFactory;require__DIR__.'/../Header.php';$spreadsheet=require__DIR__.'/../templates/chartSpreadsheet.php';// Save Excel 2007 file$filename=$helper->getFilename(__FILE__);$writer=IOFactory::createWriter($spreadsheet,'Xlsx');$writer->setIncludeCharts(true);$callStartTime=microtime(true);$writer->save($filename);$helper->logWrite($writer,$filename,$callStartTime);