How do I open the Xcode programming environment in Windows? I'm having trouble opening Xcode 9 beta 4 on my Windows computer. It's the first time I've tried downloading Xcode, and I think the problem may be my computer isn't able to open .xip files but I'm not confident. Any insight or advice?
Xcode can not run on Windows

You will need to install macOS/OSX in a virtual environment, like VMWare or VirtualBox in order to use Xcode on Windows.  https://blog.udemy.com/xcode-on-windows/  Alternatively you could look into other IDEs that allow cross-compiling if you want to code on windows but deploy on mac.  See this previous question:  https://stackoverflow.com/questions/693952/how-to-compile-for-os-x-in-linux-or-windows