The ornamental design for a tablefoot, as shown and described.
FIG. 1 is an environmental perspective view depicting a table utilizing the table foot of the present DESIGN. The table top and table legs do not form a part of the present design;
FIG. 2 is a top perspective view of the table foot of the present design;
FIG. 3 is a first side view of the table foot of the present design;
FIG. 4 is a second side view of the table foot of the present design;
FIG. 5 is a third side view of the table foot of the present design; and,
FIG. 6 is a top plan view of the table foot of the present design.
The bottom of the foot plays no part in the present design.