Fatal error: Uncaught Error: Class "PHPExcel_Writer_Abstract" not found in /var/www/rovfisk.se/inc/phpexcel/Classes/PHPExcel/Writer/Excel5.php:36 Stack trace: #0 {main} thrown in /var/www/rovfisk.se/inc/phpexcel/Classes/PHPExcel/Writer/Excel5.php on line 36