System Requirements

Option A - Microsoft Windows 2000³ or later

Option B - Microsoft Windows 2000³, XP, Vista or 7; 32-bit Microsoft Excel 2000⁴, 2002, 2003, 2007 or 2010 (To determine whether you have the 32 or 64-bit version of Excel, see this article.)

Option C - Microsoft Windows 2000³ or later (as of version 6.1 Option C has been replaced by Option A)

Option D - Microsoft Excel 97, 2000, 2002, 2003, 2007 or 2010

Option O - “Excel-compatible” spreadsheet program, such as Apple’s Numbers or OpenOffice.org’s Calc

Windows 2000 and XP -  users must log on using an account with administrator rights.

Vista/Windows 7 - 8 Operating Systems - Depending on how your computer has been set up, you may need to log on as an administrator or provide user name and password for an account with administrator rights in order to run the installation package. It is generally advisable to log on as administrator but may not be required.