If you made any emulator you dont publish it on Microsoft Store but you upload it on your webpage (or same share web site like megauploads etc.) and everyone can download your emulator and run it on Xbox ONE.
I repeat emulator is not download from MS Store but from special page. Like this http://www.xb1emu.com/
And please read this tutorial http://www.xb1emu.com/howto/
I repeat emulator is not download from MS Store but from special page. Like this http://www.xb1emu.com/
And please read this tutorial http://www.xb1emu.com/howto/