Any available references to make a save editor?

Welp, this is embarrassing.

So, I really want to make a save editor.
I've bought a few books on the subject, I bought an online tutorial about coding in C# as well,
but the more I attempt working on a save editor, even with other source codes from other, more completed
save editors, I just... end up with more questions.

Programming seems kinda like a thing you really have to know for a long period of time. If i get
confused with an error on my program, then looking up the question only...

Any available references to make a save editor?