I understand the initial installation and I followed the instructions on how to extract the Enfold theme, which I did. I also was able to then install the child theme, which is what is recommended. However, having done that, I still get error messages when I try to install any demo file saying the download of the demo didn’t work.

Is this demo import different than the steps in this tutorial on your site:

The video on this page shows installing dummy data after installing the theme by doing so in the settings. You are suggesting I delete the theme installation and reinstall one of the demos? Or am I deleting the child theme and trying to use the demo in place of the child theme? Very confusing instructions