Situation - Is there a savegame extractor

Greeting,

So, a situation here - I was working on my mod for few weeks. It was quite a while ago, and I did not backed up latest changes to a separate folder (I edited basic game files).
I put it away for a week, but a week become over six month.

And then, my game client updated without a warning.

So All I have left, apart from tons of new icons and graphics, are two savegames done with this mod.

Now, I know, I should be more careful. Shouldn't made such a newbie mistake here.
But here I am. So now a question is, can I somehow extract xml data from saved games and get my modifications back without redoing them from a scratch?

Any help appreciated...