40 Duplicate style

12:38:41 Create new Spreadsheet object
12:38:41 Create styles array
12:38:41 Add data (begin)
12:38:46 Add data (end) . time: 4 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