A lever-arch type file mechanism (100, 200, 300, 400) is disclosed as including a base (102, 202, 302, 402), two rings secured to and extending upwardly from the base, each ring including a post (104, 204, 304, 404) fixed to the base and an arch movable (106, 206, 306, 406) relative to the post between a ring-closed configuration in which the rings are closed and a ring-open configuration in which the rings are open, and a control assembly (116, 216, 316, 416) operable to move the rings between the ring-closed configuration and the ring-open configuration, the control assembly including a lever (118, 218, 318, 418) movable between a first position and a second position, and when the rings are in the ring-open configuration, the lever is movable from the first position to the second position to move the rings to the ring-closed configuration, and when the rings are in the ring-closed configuration, the lever is movable from the first position to the second position to move the rings to the ring-open configuration. The control assembly also includes a wheel (120, 220, 320, 420), and when the rings are in the ring-open configuration, the wheel is rotatable in a direction to move the rings to the ring-closed configuration, and when the rings are in the ring-closed configuration, the wheel is rotatable in the same direction to move the rings to the ring-open configuration. A lever-arch type file is also disclosed as including such a lever-arch type file mechanism (100, 200, 300, 400) fixedly secured to a cover.