How do i unzip a file

Unfortunatly I do not know how to unzip files. I have winrar. I downloaded tokyo mew mew for the GBa emu But damn this is complicated. Can someone please explain to me.Ta
~Ender

Right click the rar file and choose Extract Here, or WinRar -> Extract Here if you have it grouped.

Okay. thank you very much!
I just download pokemon emerald (E) <--What it says
I just unzipped it and opened it up with the the GBA the screen went all white!
It won't play at all. Anyways thanks. ~
Ender

Please read the Common Issues post in our Technical Emulation Help section.