Ohh I see the problem here, so here's what you need to do to play the fixed file, open your file, went to download and search for the file you've downloaded the, icon's probably the stacked book thing. All you need to do is right click on the file and press "Extract All..." if a tab pop up, click "Extract" and wait for it to finish. After that you'll see a new file named "KillerChat-1.1-pc(or other device you're using)", click on it, click again on the opened file then search for the one named "KillerChat" and the file type is "Application". Then there you go! I hope this help.