40 Duplicate style

17:55:29 Create new Spreadsheet object
17:55:29 Create styles array
17:55:29 Add data (begin)
17:55:31 Add data (end) . time: 3 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