I am encountering below error msg whenever I try to open excel file (.xls, .xlsx) in SharePoint Foundation 2010 portal. Other Office files such as word, ppt opens correctly without any error but somehow any excel file in the portal does not open and the below error msg pop-up. I browsed over the web and came across many solution but almost all of them where published for SharePoint Enterprise 2010, speaking of Excel Services. Whereas there is no Excel Service in SharePoint Foundation 2010.
Pleas note that I am opening excel files in Excel Web App.
Thanks in advance.