Had a dataset where this was the case.. old devs used Windows, I'm not sure what the DB encoding was set as when they did imports, etc. I've been putting off fixing it because it's just a PITA to deal with.

But I built a sanitizer in a couple hours with this lib, and it seems to work pretty well.

The only unexpected thing is that it converts the ordinal indicator º to o in addresses. Luckily there are only a handful I need to fix.