I am trying to analyze data in multiple worksheets using a pivot table. At this time I have Excel 2007 on my machine but believe I need 2010 with Power pivot to do this. Can it be done it 2007? If I must download 2010, can I run 2007 on my desktop as well as 2010 Excel so as not make the entire office upgrade. I attempted to download 2010 but since it gave me no option to select where I download I stopped the download. Help!