For example, click on "Top and Bottom Border," "Thick Bottom Border" or "All Borders." Change the color or thickness of the border, or create a diagonal line by choosing "More Borders" on the menu.

To add a Border to one or more Cells in Microsoft Excel, open the spreadsheet, select the Cells, click on the Borders button and take it from there.

How to Apply an Outside Border in Excel. Microsoft Excel is used as a business "table and presentation" tool at least as often as it is used to perform calculations, in part because its data entry ...