Warning: require_once(class.ole_pps_root.php): Failed to open stream: No such file or directory in C:\www\lib\Excel\php_writeexcel\class.writeexcel_workbookbig.inc.php on line 28

Fatal error: Uncaught Error: Failed opening required 'class.ole_pps_root.php' (include_path='C:\xampp\php\PEAR') in C:\www\lib\Excel\php_writeexcel\class.writeexcel_workbookbig.inc.php:28 Stack trace: #0 {main} thrown in C:\www\lib\Excel\php_writeexcel\class.writeexcel_workbookbig.inc.php on line 28