If you want to precisely specify the width of a column or columns or the height of a row or rows, you can enter specific sizes using a dialog box. This provides you with a little more control than just dragging a row height or column width.
To specify a column width, follow these steps:
Adjusting row heights is similar to adjusting column widths. Select the row or rows, and then select the Format menu, point at Rows , and select Height . In the Row Height dialog box that appears, type in the row height and then click OK .