3. On the worksheet, select cells F5:Q12. Next, on the Home tab click the Fill color icon in the Font group and choose a color of your choice.
4. Next, while the F5:Q12 range is still selected, click on the Borders icon in the Font group under the Home tab. On the dropdown menu click More Borders.
5. In the Format Cells dialog box, on the Border tab, under Line, set the Style to the thick line (second before last) and the Color to white. Then, under Presets, click the Outline and Inside buttons to indicate the border placement. Hence, I’ve defined a matrix 8 rows and 12 columns. Click the Ok button to close the Format Cells dialog box and the worksheet should look like this: