Can I fold euro money?

Excuse me, I've been wondering, is it possible to physically fold euro money? I've seen people fold paper money from other countries, but I'm not sure if the same applies to euros. I'm concerned about damaging the bills or potentially rendering them unusable. Could you please clarify if folding euro money is acceptable and if there are any guidelines or best practices to follow when doing so? I'd greatly appreciate your insights on this matter.