Tryunrolling the paper; place it on a flat surface (table top or floor); Place some heavy books on top and lit it set for a couple of days.!?!?!?! MAYBE

Maybe if you roll it backward into itself that will help or you might take a warm iron and try to press it to make it flat and easier to work with. Hope these help.
cheryl

Both replies are viable. Will try both and see which works the best. I was fortunate to receive a very large bolt of perforated paper as payment for a picture I did for the business owner. Such a great surprise. It is the creamy-white color which limits me a bit. Have made greeting cards, xmas ornaments, large pictures, earrings, bookmarks to mention a few things, that I do with seed beads on the perforated paper. The effect is quite spectacular when the right beads are used. Have also given lessons and written a manual for the technique. Thank you for your suggestions. Much appreciated. Leila

When I get near the end of a roll of wrapping paper I roll it backwards. It helps a lot to get it flatter. It doesnt want to roll back up after I do that.