Honestly, a really neat idea! I do wish the music worked, it would've added to the game a bit more (I personally couldn't figure out how to get it to work).
My main issue with this game is the repetitiveness and RNG of the game. I honestly feel as if the options given to me in combat were more or less barely influencing your dice-roll of trying to survive; I actually still wonder if there's an optimal strategy for this game that I haven't figured out yet.
Which leads me to my other point, the repetitiveness. When my character dies, I feel as if I'm punished way too much for a condition that was somewhat out of my control (insert me getting ratio'd by the shotgun hillbilly for around 7 runs). By the time I'm sent to the beginning again, I honestly didn't want to play much more. The fun aspect is a bit questionable, almost like playing DnD without your friends. I think I'd rather pick up an older JRPG with less mechanics and might have a bit more fun with it. There are ways that those games offset the repetitiveness by showing your progress through the game, a sense of accomplishment through overall character strength or even story (the former feeling insignificant due to the RNG and the latter being missing altogether).
Not saying that the mechanics couldn't have been more interesting, this game and its mechanics could've been done on any engine (and probably easier), but I'd definitely give it props for working in Excel!