Emu48 File Transfer

[MNH]

(1) I want to give programs that I intend to write on an Emu48 to some friends. I assume that files saved as *.e48 can be easily opened by an Emu48 on any Windows computer. Additionally, I'd like to save my programs in a library. I assume libraries can be attached to an Emu48 just like with a real HP 48. Would the same apply for Emu48 for Android?

(2) I want to download a program to the Emu48 to create a library using a library maker from hpcalc.org. Aren't programs on that website stored as binary files? Edit -> Load Object... looks like how it's done.

(3) I've always wrote programs on a real HP 48. Would writing them using HPUserEdit or Debug4x HP 48/49 SDK make it easier? Doesn't the later have a built-in library maker?