Donna, I think I would dampen it with a spray bottle, a little at a time, and smooth it with your hands. It will take a while to do, and you might want to do it in increments, letting it dry in between pieces. Can you lay sections on a wire rack and weight each section while it dries, if you have room?

Tami

You could try to wet it and lay flat to dry. Or you could try steaming it, like they do with blouses and such in stores if you have a steamer....don't touch the iron to it, but let the steam do the work.

Was there any fibre content or washing instructions with the lace? That may help.

I've never tried them, but Downy and a few others make a spray wrinkle releaser where you spray and then smooth with your hands.....

Could you put the lace in slightly warm water that had a drop of Downy in it, then take out and put on a towel lying
flat , then dry it with a hair blow dryer?