What is this html file

"<html><script type="text/javascript">document.cookie = "CPR=1; path=/";</script></html>" That is what we get when we click on it.

That is all you've posted; when we click on that it leads us to nothing.

To open an HTML file you can right click on it; look for "open with"; click "browse" and then navigate to Internet Explorer, or Fire Fox or other browser and select that, and then open it to view the file.