Warning: require_once(../Build/PHPExcel.phar): Failed to open stream: No such file or directory in /opt/lampp/htdocs/invoicebill_osingo/vendor/phpoffice/phpexcel/Examples/01pharSimple.php on line 37

Fatal error: Uncaught Error: Failed opening required '../Build/PHPExcel.phar' (include_path='.:/opt/lampp/lib/php') in /opt/lampp/htdocs/invoicebill_osingo/vendor/phpoffice/phpexcel/Examples/01pharSimple.php:37 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/invoicebill_osingo/vendor/phpoffice/phpexcel/Examples/01pharSimple.php on line 37