If Microsoft auto-saved a copy on the cloud (which might have been possible in your case) then you can recover it by opening Excel, and then clicking on File from the top menu bar, followed by hovering your mouse over Open Recent. Once you hover your mouse over Open Recent the file should be there if Microsoft auto-saved it.
Otherwise, the file is most likely gone and cannot be recovered through any normal means and you would have to rely on the help of third-party recovery tools (which I personally would not recommend)