[Help] ThinkPHP5+PHPExcel1.8.1 cannot be downloaded

Please tell me how to use TP5 import PHPExcel1.8.1 downloaded from the official website
If anyone knows, please reply to me, thank you very much!

The following code does not work! The result shows that it cannot be downloaded! !

The PHPExcel entry file is in extendclassesPHPExcel.php/** Include PHPExcel */<br> thinkLoader::import('classes.PHPExcel');<br> <br> //Create new PHPExcel object<br> $objPHPExcel = new PHPExcel();