Help needed installing Green Forms

Bought Green forms.

Want to install on Xampp local server and only instructions with the purchase are as below.

  1. Unpack downloaded archive and upload files to your server.
  2. Open it in your browser – Wizard will be launched automatically.

No response from vendor so bit stuck on how to proceed.

After uploading files to local machine xampp htdocs folder I have no wizard to launch. All pretty standard PHP files etc.

Maybe missing something pretty obvious but not clear to me how to launch wizard?

Any help greatly appreciated.


Here are file for info