Fatal error: Uncaught Error: Class 'PhpOffice\PhpSpreadsheet\Writer\Xls\BIFFwriter' not found in /home/user2090261/www/spectexforma.by/parser/lib/Phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xls/Worksheet.php:58 Stack trace: #0 {main} thrown in /home/user2090261/www/spectexforma.by/parser/lib/Phpspreadsheet/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Writer/Xls/Worksheet.php on line 58