Yes, I did. Many moons ago. I have Blender, and I'm slogging through it, learning slowly. I tried keyword searches, but nothing useful/relevant. Yes, I tried Google, and just about every other propmaking website I could think of.
Might help if you could at least name what you want unfolded or post a pic. Last time I offered to help someone with a vague post like this they sent me a folder with 5 sets of full armor they wanted cleaned up in Blender then unfolded then latter added they wanted it done in less then a week and all for free. Well after that they didn't get a thing from me.