Just FYI - winRar cost after your trial period if you want to continue to use it. I don't know how much it is, as I didn't continue with it. I can do a right click and to extract all and it will open both zip files and the rar files. I have no idea what program it is - sorry.
WinRar and 7-zip are the two that I know about. The winRar site is just winrar.com. Good luck with getting something that you really like, and works for you!
I use Win Zip. It is free and I have been using it for 10 + yrs with no problems/Lillian
Thank you very much for this is also something that I was looking at. Now I also have the answer and the website. ****
I use 7zip, found on that same page at cnet. You right click on a rar file, in the menu is 7zip. You choose extract all files or extract here, and get singles or a folder. Very easy.