Exemplary embodiments according to the present invention relate to a file comprising a cover member with front and back cover panels that are hinged to each other for movement between open and closed positions, wherein the cover panels in the closed position define an interior space configured and dimensioned for containing a plurality of stacked papers. The cover panels may have first and second corners disposed opposite from the hinge. At least one of the cover panels may comprise a tab portion extending away from the hinge and disposed between the corners. First and second elastic retention elements may each be secured to one of the cover panels. The first and second retention elements may be disposed and configured for looping around the first and second corners of the other cover panel, respectively, in the closed position for retaining the closed position.