Each spreadsheet can either be opened and run, or saved to any location on your computer or network.
The spreadsheets are Microsoft ExcelTM worksheets. Note that some of the spreadsheets use formulas (for example =RANDBETWEEN(a,b) that require the Data Analysis Toolpack, and this is an optional add-on to recent versions of ExcelTM.
You do not have to have Microsoft ExcelTM or Microsoft OfficeTM to open each worksheet. Two other options are to use a Spreadsheet Viewer (for example Excel Viewer 2003) or if you want to use all features of the spreadsheets then obtain a free Office Suite such as OpenOffice
The spreadsheets for Alpha Mathematics, Beta Mathematics, Gamma Mathematics, Gamma Fundamentals, Theta Mathematics, Theta Dimensions, Sigma Statistics and Delta Mathematics are also available on the Student CD which is supplied with each copy of the corresponding Workbook.