40 Duplicate style

04:18:44 Create new Spreadsheet object
04:18:44 Create styles array
04:18:44 Add data (begin)
04:18:46 Add data (end) . time: 2 s

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