38 Clone worksheet

00:00:35 Create new Spreadsheet object
00:00:35 Set document properties
00:00:35 Add some data
00:00:35 Rename worksheet
00:00:35 Clone worksheet
00:00:35 Rename cloned worksheet

Fatal error: Class 'XMLWriter' not found in /home/bitrix/ext_www/retender.ru/bitrix/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/XMLWriter.php on line 5