PHPExcel error opening the excel file

Question

Catchable fatal error: Argument 1 passed to

PHPExcel_IOFactory::createWriter() 

must be an instance of PHPExcel, null given, called in C:\\xampp\\htdocs\\PHP\\print.php on line 19 and defined in C:\\xampp\\htdocs\\PHP\\Classes\\PHPExcel\\IOFactory.php on line 129

PHPExcel

Answer 1

Try to Install PHPExcel Library via Composer composer require phpoffice/phpexcel . and then include autoload.php file.