How can I remove glue when the usual remedies don't help?

Hello, I had a tiny tube of superglue from the supermarket. Unfortunately, some of it spilled onto my table and I can't get it off. I've tried Acton, nail polish remover, thinner, isopropanol, and any other adhesive remover I can find in the store. I'm very surprised that none of this has helped, and I'm…