08 Conditional formatting

13:48:57 Create new Spreadsheet object
13:48:57 Set document properties
13:48:57 Add some data
13:48:57 Set column widths
13:48:57 Add conditional formatting
13:48:57 Duplicate the conditional formatting across a range of cells
13:48:57 Set fonts
13:48:57 Set header/footer
13:48:57 Set page orientation and size
13:48:57 Rename 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