http://xmrhfasfg5suueegrnc4gsgyi2tyclcy5oz7f5drnrodmdtob6t2ioyd.onion/onion-services/setup/index.html
The other files are your Onion Service keys, so it is imperative that these are kept private.
If your keys leak, other people can impersonate your Onion Service, deeming it compromised, useless, and dangerous to visit. Now you can connect to your Onion Service using Tor Browser, and you should get the HTML page you set up back in Step 1 .