Installation failure for Launch Theme

I am attempting to install the Launch theme from the .zip file and get the following error:
Unpacking the package…

Installing the theme…

The package could not be installed. The theme is missing the style.css stylesheet.

Theme installation failed.

Please cancel my purchase. Here is the copy of my invoice:

Hi there

The template you bought is an HTML template, it’s not possible to install it in WordPress as a theme.

You can use our contact form for refund requests.