Click cell A1

Click the down arrow on the Font Size window

Click 16

Excel changes the font size from 10 to 16 point.

Change Font Style

Click cell A1

A1 becomes the active cell.

Center Cell Contents Across Columns

Highlight A1 through F1

You can do this by dragging your mouse "plus" cursor from cell A1 to F1.

Click the Merge & Center button on the format toolbar.

Excel centers the contents of cell A1 over the cell range A1 through F1

Your spreadsheet should look like the one below:

Now you try it!