Abstract: Document filing apparatus comprising two rails adapted for mounting on opposite side edges of a drawer or the like container for converting the drawer to contain documents or files in a suspended filing system and a plurality of tabs which are attachable to the documents or files and which can be slidably mounted on the rails. Each rail comprises a channel shaped portion having two side walls joined by a web, which is adapted to embrace the edge of the drawer to locate the rail on the drawer edge, and a flange projecting outwardly from one of the side walls of the rail to slidably carry an end of each tab. The flange has a horizontal guideway surface for the tab and a rib spaced from the side wall of the rail which locates in a recess formed in the tab to locate the tab on the rail and resist accidental dislodgement of the tab from the rail.