....windows opens .zip files without the need of any additional software since windows xp.... it's literally the most simple thing ever.
In case you can't figure out I recommend getting 7-zip, it's free and works great.
winrar is also very simple and free ,yes the trial says it ends but you can just close the window that says that, you can use it infinite times :)
No reason why not to use 7zip instead, it's actually free and open source, plus it's objectively better.
It takes care of anything winrar does and then some.