FIG. 1 is a front view of a packaging container sheet showing my new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is an unfolded front view thereof; and,
FIG. 8 is an unfolded rear view thereof.
The broken lines illustrate portions of the packaging container sheet that form no part of the claimed design. The dash-dotted lines in the drawings depict claimed fold lines.