how to flash cell in excel
1 Select the cell that you want to flash on and off. ( 2 Make sure the cell has something in it; it should not be blank.). 3  Make sure the Home tab is displayed on the ribbon. 4  In the Styles group, click Cell Styles.5  Excel displays a drop-down selections of pre-defined styles. 6  Choose New Cell Style. Select the cell that you want to flash on and off. ( 2 Make sure the cell has something in it; it should not be blank.). 3  Make sure the Home tab is displayed on the ribbon. 4  In the Styles group, click Cell Styles.