So in previous versions of the game i could just download and open the game easily but for what ever reason for the past several months i have not been able to play because they all get turned in to a 7zip or something, could any one please help me try to figure out how to properly launch the game, I have really been wanting to see all the new updates x.x, peas and carrots ^o^!

It's a compressed data archive, everything is inside ready for use as soon as you extract it. To do so you need either WinRAR, WinZIP or 7ZIP program, once you choose and install simply open the downloaded game file and drag files where you want them or right click and select "Extract to..."