How to Save Excel on Mac Desktop?

I am running office 2007 in the Windows guest system under Parallels (I do not want to use office Mac), but want any blank spreadsheet that opens up to automatically save to the desktop of the Mac. How do I set this up in Excel to always do this?

 

There's a setting in Excel's Tools->Options->General panel: Default File Location. This defines its default save folder. You have to type in the correct path in by hand - there's no browse option to set it up. So I suggest you use Windows Explorer to browse to the Mac Desktop folder via whatever folder sharing scheme you have chosen (I use a mapped network drive), then copy that path into the Excel Options panel.

PS Why isn't this in the Windows sub-forum?