The spreadsheet exercise is on representing information in charts: Charts – session 4 2010 (Office 2010)
An older version for Office 2007 is available: Charts – session 4
This exercise requires the Excel file WHSMITH.XLS
Note that is an XLS (Excel 2007) file. You may need to use File – Save As – Excel workbook to save this as the latest file format (with the file extension xlxs).