See more of the sheet grid
By Neale Blackwood
Sometimes you want the Excel sheet grid to fill as much of the screen as possible. To do that you can use Excel’s full screen option.
Excel 2007 – in the View Ribbon click Full Screen button in the Workbook View section. Press the Esc key to return to normal view.
Excel 2003 – in the View menu click Full screen. A Close Full Screen option should be displayed to click to return to normal view, or you can click the View menu again and select Full Screen.