You do not have permissions to open this file on excel services

Error Message:

“You do not have permissions to open this file on Excel Services.
Make sure that the file is in an Excel Services trusted location and that you have access to the file.”

You will see the error message when you try to view the excel file using the Excel Web Services.

Fix:

Browse to SharePoint Central Administration.
Go to the Operations tab >> Services on Server, and make sure that "Excel Calculation Services" status is started. If status is stopped, start the service.


Click on Shared Services Administration and click on default SSP.
Under 'Excel Services Settings' >> click on 'trusted file locations'

Click on 'Add Trusted File Location', using the below settings, create the Trusted File Locations.