PhpSpreadsheet Reader Example #04
        Simple File Reader using the IOFactory to Identify a Reader to Use
        ';
        echo 'Loading file ', pathinfo($inputFileName, PATHINFO_BASENAME), ' using IOFactory with the identified reader type
';
        $reader = IOFactory::createReader($inputFileType);
        $spreadsheet = $reader->load($inputFileName);
        echo '
';
        $sheetData = $spreadsheet->getActiveSheet()->toArray(null, true, true, true);
        var_dump($sheetData);
        ?>