title: sharepoint 2010 excel services - facing problems editing excel
body: <p>I have uploaded an excel into a document library and able to view it in the browser. 
  I am not able to edit the excel in the browser. </p>
  
  <p>I have a simple calculation on two cells. Even the regular worksheets without any calculations are not editable. </p>
  
  <p>Any idea? </p>