I'm trying to figure out if it's possible to install and run a Windows 8.1 app on Linux(currently using Ubuntu 16.04, but not opposed to installing a different distro). I know that WINE is supposed to be able to run some Windows programs, but being almost brand new to Linux I don't know if WINE works with Windows 8.1. Also, I'm not sure how to go about getting the program in the first place to even attempt that, since it would appear that you cannot download Windows 8.1 apps from the Windows store unless you have a device with Windows 8.1. So, My questions is does WINE work with Windows 8.1 apps, and if so, how do I go about getting the app for it to run? Thanks!
Wine does a fine job to run individual Windows programs on Linux and you can find good instructions to use it in Ubuntu's official page on Wine
Qemu provides a good computer emulator which allows to run a separate operating system over your current Linux installation, and is well documented on Ubuntu's official Qemu documentation.
Another commonly used option is to setup virtual machines which are a bit similar to Qemu but instead of emulating everything, they use pass through techniques to access the computer's component's through the host. VirtualBox is a popular solution for this, also documented on Ubuntu's official VirtualBox documentation.