There is literally a video explaining everything. Are you that lazy to look it up? Do you need someone to come to your house and do it for you? Come on man, just read the page!
Edit: VIDEO IS UP ON THE LEFT SIDE - just in case you get lost, kiddo.
Hello. The person is not very attentive, but let's not quarrel.
You need to save it into the extension directory (Documents\CopperCube\extensions on Windows, ~/Documents/CopperCube/extensions on Mac OS X).
See https://www.ambiera.com/coppercube/doc/index.html
