If you're not seeing the gridlines in Microsoft Excel, first ensure that the gridlines box in View TAB is checked. If it's checked, but you still don't see any gridlines, your cells may be filled with white color. To change to no fill, highlight the affected cells, go to Home TAB, Font, Fill Color and select "No fill" from the drop-down menu, if still don't see any gridlines, your cells borderline may be filled with white color, To change to gray color, highlight the affected cells, go to Home TAB, border, More border and select "Gary color" from the color drop-down menu, click on Outline/inside border line.
