How do you  adjust row height in excel at once?
 Select the row or rows you want to adjust. To select a single row, click the row number. To select a group of rows and drag your mouse over the row numbers.To select all of the rows, click the triangle in the upper left corner of the worksheet.tep 2. Select the Home tab, click Format on the ribbon, and then select Row Height.. You can also right-click the selected rows and choose Row Height from the context menu. 