American paper is short and fat. The dimensions of regular old US Letter sized copy paper are 8 1/2 x 11 inches. That’s a quarter inch shorter and two-thirds of an inch wider than the paper that comes out of every copy machine in the rest of the world: A4 standard sized paper. Cut it in half and it’s called A5. Half of that is A6 and so on. It’s pretty hard to find A4 paper in America, and equally hard to find US Letter in European shops. With this information, you can conclude that your folders, binders and papers will not be compatible with the office supplies overseas.