Yes, the Student Edition of Crystal Ball 2000 works with Excel 2000 (Office 2000) and Excel 2002 (XP) (Office XP). 

However, the  4.0c Student Edition of Crystal Ball requires the following change to work with Excel 2000:

1. Create an empty dummy file called "Excel7.reg" (if using Notepad, please be sure to include the quotes around the name) and save it in the folder where the Excel executable is (usually C:\Program Files\Microsoft Office\Office).
2. Uninstall and reinstall Crystal Ball.

If your Crystal Ball toolbar disappears, in Excel:  

1. Open the CBTool5.xlb file in the CB folder (usually C:\Program Files\Crystal Ball). You will not see any changes.
2. Select View > Toolbar.
3. Add a check next to CB.
4. Click on OK.

Crystal Ball 4.0e, 4.0gWindows 95, 98, NT 4.029913704-15-0005-09-00

Support Center > Knowledgebase > Academic FAQ's > Excel 2002 (XP) and 2000