I hope this question belongs here.

Suppose an editor for a specific file extension. It usually has a user friendly interface so you don't see raw data. Once you edit anything and save the editor modifies some data. Is there any way to keep track of these changes and see which specific data is modified? This is motivated by the fact that an editor is a program that has its limitations and sometimes it does not allow some changes. This protects the original file from fatal damage. As an example suppose a .nes file that can be edited through the HEX editor or a "level" editor. I might not know the ROM address where some level information is stored but (i guess) the "level" editor knows. So I can edit, save and search the region of the ROM, with the HEX editor, that was modified. That would give me information on where this level data is stored and be able to understand it.

My system is Windows so I wonder if there is any "save register" that keeps track of this save operations. Or is it an editor specific thing and each one has its own way of saving data, meaning i should look into the editor's code more than a general Windows place?

Thanks,

PD: I'm sorry if I misunderstood something essential but I'm not experienced with how this precesses work.