When I am executing QVW file manually it is running successfully without any log error.
When I am trying to load single excel I am getting error "Cant open the file ".As an Admin How to resolve such kind of failed task. Request you to help me out Please.
I agree with Ray in that it seems to be a permissions issue. Can you enable document logging and then post the log? See Qlik knowledgebase article How To Enable QlikView Document Reload Log for steps.