getActiveSheet();
$worksheet->setCellValue('A1', 'Mail Me!');
$worksheet->getCell('A1')
->getHyperlink()
->setUrl('mailto:me@example.com');
$worksheet->setCellValue('A2', 'Mail You!');
$worksheet->getCell('A2')
->getHyperlink()
->setTooltip('go ahead')
->setUrl('mailto:you@example.com');
$writer = new HtmlWriter($spreadsheet);
$html = $writer->generateHtmlAll();
self::assertStringContainsString('Mail Me!', $html);
self::assertStringContainsString('Mail You!', $html);
$spreadsheet->disconnectWorksheets();
}
}