15 Datavalidation

09:48:17 Create new Spreadsheet object
09:48:17 Set document properties
09:48:17 Add data
09:48:17 Set data validation

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