Like many items I first used for a home office then moved to using in our business. We store many and move papers to clients in this attractive box which incidentally has caused many clients to buy a quantity for themselves
I needed something to keep files upright and block light. I put the documents inside vented plastic totes for more-stable stacks and to save them from upper-floor leaks or fire sprinklers. The cardboard boxes that were glued straight fit well in the plastic totes. Those that were glued skewed on some corners couldn't sit flat in the plastic totes so I'll end up with bent corners and possibly damaged documents.
These are great and have become the industry standard--you see them everywhere. I do wish they came in smaller amounts--3 or 5 packs--instead of just 10 packs. The home user doesn't always need so many or have the space to store the extras.
I'm a repeat user for files in storage. I like the combination of a fair price rugged construction and the ability to stand up to being stored on top of one another without buckling.