What the fuck? Don't you know anything about renpy?
You just make a directory under the game directory named "screens" andplace the save_load.rpy in there.
NO FUCKING NEED TO EXTRACT ANYTHING.
Dropped files replace the identical named files in an archive!
Jesus fucking christ, what's your fucking problem?
If you must know, no I do not know. Never did anything with renpy.
Something annoyed me, found a way to change it, shared it with people. Thats about it.
Looks like there is a better way to do it which I didn't know because of my lack of knowledge towards renpy, that's great!
Now you could've just shared your knowledge without being a dick.