extract each rom put them in their own seprate files...for example make snes folder in ur onedrive put the extracted snes rom into the snes folder....do the same for the rest of them...hope that helps u out.
Viewing post in Nesbox Emulator for XBox One comments
push Lb and Rb toget her and it will bring up a menu...save state will be there...but save a lot because for some reason after a while playing the game will stop saving if u exit it it will say folder empty..that means just refresh the page and ull have everything back...make sure u constant save ull see what I mean..what I do is play for a bit keep saving threw...than exit the emulator to the main menu and go back into if It says folder empty...it mean it goes back to ur last save point or a little further all depends how much u save...but if it goes straight back to ur roms than ur good...I usually refresh my page every 2 hrs or so...so I wouldn't have that problem...that's like than he only problem with this emulator the save and load state needs to be worked on a bit...but otherwise it's great u have to give the creator props...