Have Error when run project

I do not why like this Please have me.
Error: ERROR: file is not configured or not found for: test.xlsx

the text.xlsx is on my GitHub repo for this project.

if you look at my index.php, you will see the following

<?php
$excel=basename($conf, '.ini') . ".xlsx";
$e=new excel2JSON();
if (! $e->set_excel($excel, 'false'))
$error[]='<div class="alert alert-danger">ERROR: file is not configured or not found for: '.$excel.'</div>';

?>


make $excel match your file, I had a configuration file for displaying select Excel cells called test.ini.

Try downloading a zip from my GitHub repo for this project, if you still get errors please let me know; I am slowly working on updating this project when I get free time.