There are a few ways to merge and center in Excel. One way is to use the text alignment buttons on the Home tab of the ribbon. To merge cells, select the cells you want to merge and then click the Merge and Center button. To center text within a cell, select the cell and then click the Center button. Another way to merge and center cells is to use the Merge and Center command from the Format menu. To do this, select the cells you want to merge and then click the Format menu and select Merge and Center.