you do seem to mix up lot of things, lets try to clear it up a bit
that cant work. you need to paste it in the renpys game folder, not the one where saves might go to. You can either edit apks though that might be too much for you, or use joiplay.
https://f95zone.to/threads/play-rpg...wine-vn-maker-on-android-using-joiplay.44792/ download from patreon incl. renpy plugins, download the win version of the game you want to edit, extract the files (fe mixplorer can do that), extract urm to the game folder, open the .exe or .py file with joiplay and you are done.
I dont use saveeditonline anymore, but remember it not working sometimes. May this does ? idk
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dunno whats kps, you mean KB (ps is for kbps which is down-/upload speed - kbps= kilo bits per second). Note that files are compressed, 400KB can easilly take up few MB uncompressed tough >25 is not that easy (typical is a ratio of ~ 1:10). But if you truly meant 400kbps and the file was actually larger .... (note that B = Byte = 8 bits)
Notepad sure cant work with normal saves. You could write a python script (may even using a chatbot of your liking - tell it to be able to convert renpy saves using pickle an zlib).
Other tools than named till now idk. It's also not clear android or pc? the first limits you bit and urm with joiplay is likely the easiest approach imo nearly always working. For the latter state what you trly want. Well ok you could also work with
https://f95zone.to/threads/unren-ba...compiler-console-developer-menu-enabler.3083/ f.e.