Save a workbook to a SharePoint site
In Microsoft Excel 2010, you can save a workbook directly to a Microsoft SharePoint Services site by using the Save to SharePoint command.
Click the File tab, click Save & Send, and then click Save to SharePoint.
Double-click Browse for a location to choose a location in which to save the workbook or, if you have already saved a workbook from Excel 2010 to a SharePoint site, you can choose from the locations that appear under Recent Locations or Locations.
In the Save As dialog box, type a file name and then click Save.