u/CupcakesWii

So I've been playing Fire Emblem Thracia 776 on Open Emu, and recently I built a pc gamer with Windows 10. I tried opening the battery save file (.sav) on Mesen, but it didn't work, I also tried changing the .sav to .srm but that didn't work either.

Am I doing something wrong? Thanks a lot in advance to anyone who answers me