Why when i dowload minecraft comes alive it doesn't show like WinRAR?

I downloaded the mod Minecraft comes alive. But it doesn't shows as WinRar./( i do have Winrar in my computer) It shows a zipped folder how do i do this?

Right click on the compressed zipped folder, then click properties.
This will open up the file properties, from which you will use the "Change" option from the "General" tab. After clicking the change button, a window will pop up that includes a list of programs to choose from. In this case, you will select WinRAR as the default application for opening that type of archive.

Get 7z its a better unzip program