';
self::assertStringContainsString($expected, $data);
$reader = new XlsxReader();
$spreadsheet = $reader->load($testfile);
$outfile = File::temporaryFilename();
$writer = new XlsxWriter($spreadsheet);
$writer->save($outfile);
$spreadsheet->disconnectWorksheets();
$file = 'zip://';
$file .= $outfile;
$file .= '#xl/styles.xml';
$data = file_get_contents($file);
unlink($outfile);
$expected = '';
self::assertStringContainsString($expected, $data);
}
}