I had another version of this at the DMV. They needed to see bills that offered proof of my residence (ie power/water/etc). Turns out they wanted them to be mailed to you, which wasn't going to work because I do paperless billing for everything. So I printed them out and tri-folded them as if it had been in an envelope. People in front of me in line got turned away for using printed bills, but mine worked just fine.
Another tip if you need “proof of address” is to use any notice from your State that your license or other paperwork is expiring. They’re a government agency, the paper is printed on their letterhead, and it’s addressed to you at the address you’re already trying to establish!