We provide a download file of your entire site -- you'll get all of the HTML and CSS files that you'll need to take your pages anywhere else you wish to go.
The process of getting up and running on your new platform depends largely on which platform you choose, and if you choose Wordpress, which theme you choose.
Each platform, and especially between Wordpress wordpress themes, requires skilled setup and coding from an experienced programmer.
PS. It’s important to bear in mind that even if you’re already in Wordpress, going from one theme to another would require a recode, so you don’t lose any flexibility or put yourself at a disadvantage by trying Heroic.