How to: Format the border around a cell.
Solution:
Select the cell(s) and select 'Cells...' from the 'Format' menu. Click the 'Border' tab and select the edge(s) to format. Select the border style.
To format cell border:
1) Click on the cell to format.
2) Select the 'Format' menu and select 'Cells...'. (The Format Cells dialog box appears.)
3) Click the 'Border' tab.
4) Select the specific edge of the cell for which to add a border.
5) Specify the border style:
a) Select the desired line style from the 'Style' group.
b) (Optional) Select the desired color for the line from the 'Color' drop-down list.
6) Repeat steps 4) and 5) if multiple edges of the cell require a border.
7) Click 'OK'.
