The ornamental design for a sheetpackaging, as shown and described.
The patent or application file contains at least one drawing executed in color. Copies of this patent or patent application publication with a color photograph will be provided by the Office upon request and payment of the necessary fee.
FIG. 1 is a front plan view of a color embodiment of a sheet packaging of our new design; and,
FIG. 2 is a front plan view of a black and white embodiment of a sheet packaging of our new design.
The opposite side of the design is plain and devoid of surface ornamentation.