I make site collections as Business Intelligence center and when I upload simple excel documents and tried opening it and ,it throws me error as " The workbook cannot be opened" Please help me ..Thanks in advance

Hi Gurw, Is Excel installed on the client machine? I suppose you uploaded an Excel 2007 document. Excel 2007 is required for Excel snapshots and Excel copies from an EWA Web Part. If Excel 2007 is not installed on the client machine where a snapshot or copy is being attempted, the “The workbook cannot be opened” message will be displayed. For more details, please read Business Intelligence with SharePoint and Excel. If there is any other question or the problem still persist, could you please provide Event log so that we can do more research on it. Best regards, Emir