This plugin was written by Shawn Grimes and is called the SRG Clean Archives.
This plugin does require you to also run the Exec-PHP plugin by SÃ¶ren Weber.
Once both plugins are activated it is as easy as creating an empty page and putting the php call for the archive function in it.
Everyone should have a good archives page. It helps a new visitor find things of interest to them and makes it easy for you to look back and find a post you want to update or share with your new readers.