How can i export html tableS to multiple excel worksheets(one excel file) with my worksheets names, formulas(formulas in R1C1 format, cross sheet data for formulas. For example: i need data from second worksheet in first worksheet.) and stylesin php without js/jq? I only try to use phpspreadsheet library, but it cause error in formulas and styles didnt't work
public function index() {
$firstHtmlString = '<table>
<tr bgcolor="#D9D9D9">
<td rowspan="3">=SUM(R[-9]C:R[-2]C)</td>
<td>=SUM(R[-9]C:R[-2]C)</td>
</tr>
</table>';
$secondHtmlString = '<table>
<tr>
<td>hello world</td>
</tr>
</table>';
$reader = new Html();
$spreadsheet = new Spreadsheet();
$worksheet = $spreadsheet->getActiveSheet()->setTitle('Sheet1');
$spreadsheet = $reader->loadFromString($firstHtmlString, $spreadsheet);
$reader->setSheetIndex(1);
$spreadsheet->createSheet();
$spreadsheet->setActiveSheetIndex(1);
$worksheet = $spreadsheet->getActiveSheet()->setTitle('Sheet2');
$spreadsheet = $reader->loadFromString($secondHtmlString, $spreadsheet);
$writer = new Xls($spreadsheet);
$writer->save('write.xls');
}