Abstract: A file folder includes a plate having a front panel, two side panels, a bottom panel, a rear panel, a top panel and a cover coupled together and folded relative to each other. A board has two side strips secured to the side panels so as to separate the file folder into a chamber and a room. Two expandable members are secured between the board and the rear panel such that the upper portion of the room can be opened. A number of partitions are secured to the expandable members so as to separate the room into a number of spaces for receiving various kinds of documents.