FIG. 1 is a front perspective view of a first embodiment of the support rail assembly for office accessories embodying our design, the rear edge portion of a worksurface and a support structure being shown in dotted lines as environment and forming no part of the claimed design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a left side view thereof, the right side view being a mirror image thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof; and,

FIG. 7 is an enlarged cross-sectional view taken generally along line 7—7 in FIG. 1.