Hello @north03031991,
First of all, thank you very much for using the theme.
As for the demo content, currently, the theme does not have the option to import the demo but there is nothing to worry about as we do have the official documentation that will help you set your site as in the demo.
Doc link:
https://themepalace.com/instructions/themes/mediclean-pro/
Further, if you have any confusion while setting up the section then we are right here for you.
Thank you.