20 Read Sylk

Fatal error: Uncaught Error: Class "\PhpOffice\PhpSpreadsheet\Reader\Slk" not found in /var/www/erp/spreadsheet/src/PhpSpreadsheet/IOFactory.php:164 Stack trace: #0 /var/www/erp/spreadsheet/src/PhpSpreadsheet/IOFactory.php(272): PhpOffice\PhpSpreadsheet\IOFactory::createReader() #1 /var/www/erp/spreadsheet/src/PhpSpreadsheet/IOFactory.php(188): PhpOffice\PhpSpreadsheet\IOFactory::createReaderForFile() #2 /var/www/erp/spreadsheet/samples/20_Read_Sylk.php(7): PhpOffice\PhpSpreadsheet\IOFactory::load() #3 {main} thrown in /var/www/erp/spreadsheet/src/PhpSpreadsheet/IOFactory.php on line 164