The ornamental design for a desktopfile, as shown and described.
FIG. 1 is a perspective view of a desk top file showing my new design, a
corner portion of the uppermost divider being omitted for convenience of
illustration;
FIG. 2 is a bottom rear perspective view thereof with the divider corner
restored;
FIG. 3 is a reduced scale top plan view thereof;
FIG. 4 is a right side elevational view thereof with a portion of the side
panel broken away; and