We tested 2 ways to download to Excel, using 3 operating systems. Results follow.
For running a query and downloading to Excel using the "Edit/Run/Download" feature, the same results were obtained for Vista 32, XP, and Windows 7. The result for these was that the query executed, but did NOT download to Excel. This test therefore failed on all 3 systems.
For running a query and downloading to Excel using the "Run to Excel" feature, this worked on XP. For Vista 32 and Windows 7, a message appeared stating that the Excel file was corrupt, but it did open and it did appear correct.