Excel 2007 enables you to decide whether to display a worksheet’s gridlines, which mark row, column, and cell boundaries. For worksheets that contain a lot of data, it’s often a good idea to leave the gridlines on to help you distinguish between cells. For worksheets that contain charts and graphics, you should consider turning the gridlines off so they don’t compete with the images. If you find that the default gridline color doesn’t fit in with the rest of your design scheme, you can change that color as well.
Display or Hide Worksheet Gridlines
Click the View tab.
Follow either of these steps:
Clear the Gridlines check box to hide the worksheet’s gridlines.
Check the Gridlines check box to display the worksheet’s gridlines.
Change Gridline Color
Click the Microsoft Office button.
Click Excel Options.
Click Advanced.
In the Display options for this worksheet section, click Gridline color.
Click the desired color.
Click OK.
Tip
If your worksheet’s gridlines are hidden, you can turn them on from within the Excel Options dialog box by selecting the Show gridlines check box, which is just above the Gridline Color control.