how to install any undertale mod in mobile version and how to install save file

Note: To do this you need to have the droidtale and PC version of undertale and the game (or you can go and download it for free from other sites, that&what I did). The mod installation method is completely my own, I&been using it for a few months now and I&sharing it in case others want to use it. I found the installation method myself. I don&know if it works in Deltarune #undertalefan