<?php

require __DIR__ . '/vendor/autoload.php';

        $reader = new \PhpOffice\PhpSpreadsheet\Reader\Xlsx();
        $reader->setIncludeCharts(true);

        $spreadsheet = $reader->load("/home/fod/public_html/signoff_graph/Sign_Off_Template.xlsx");

        $sheet = $spreadsheet->getActiveSheet();

        // Redirect output to a client’s web browser (Xlsx)
        header('Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet');
        header('Content-Disposition: attachment;filename="SignOff Sheet.xlsx"');
        header('Cache-Control: max-age=0');
        // If you're serving to IE 9, then the following may be needed
        header('Cache-Control: max-age=1');
        // If you're serving to IE over SSL, then the following may be needed
        header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
        header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT'); // always modified
        header('Cache-Control: cache, must-revalidate'); // HTTP/1.1
        header('Pragma: public'); // HTTP/1.0

        $writer = new \PhpOffice\PhpSpreadsheet\Writer\Xlsx($spreadsheet);
        $writer->setIncludeCharts(true);
        $writer->save('php://output');