What is blocklist file? What is the use of that file?

Occasional Contributor

After installing EDGE, I found that in the folder C:\Users\Administrator\AppData\Local\Microsoft\Edge\User Data\Ad Blocking there is a blocklist file, when I open it, I see there is lots of URLs in there.
Looking at the folder name and file name, I think it's the file that saves the blocked URLs from the browser. However, when I try to open some of the URLs in there, it still loads normally without being blocked.
So, what is the use of that file?

Also, I do some Block request domain / Block request URL of ads link in my browser. What is the domain / URL host file that I have blocked? Where is it located?

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