index.php

You can also look into the creating a virtual host
If you do that, you won't have to use a subdirectory url : localhost/myproject and can access your project using something like http://myproject.local
http://sawmac.com/xampp/virtualhosts/

Thank you for that information. I've studied your link and found a virtual host is ideal for when building more than one website but I'm not doing that.

While you might be working with only a single website, today, as a first-time user, you may want to experiment with more than one layout of your site.  That is where the virtual host configuration will be more useful.

Who knows?  In the future you might become a website developer and offer your services to others...

Thanks twpmarketing for your input of which I have noted.