Hello,
First of all thank you very much for using the theme.
Setting up the site using the theme is easy. The slider as well is set from the customizer. For this go to Admin Panel > Appearance > Customize > Featured Slider. You can set the slider using the post, page, category etc.
Also we currently we do not have the demo file bundled within the theme but we do have the theme official documentation that will help you set your site as in the demo.
Doc link:
https://themepalace.com/instructions/themes/education-hub-pro/
Further, if you find any confusion while setting up any of the sections then kindly let us know.
Thank you.