When opening a page in OpenServer, the message Index of appears. How to remove it?

Question

open server

I train in php, when I launch the site in OpenServer, such a window constantly appears, then I click on the file name and everything works. How to remove this window so that the site starts immediately?

Answer 1

We read the documentation about what an index file is and set up an open server on test.php
Or we guess how to rename the file.