Auto refresh data from Sharepoint Excel File

[CougDevil]

I've created a report that is connected to an Excel file in Sharepoint, and I need it to autorefesh each morning. When I try to schedule a refresh online though, it is all greyed out and won't let me selection any options. Is there something different I need to be doing to schedule a refresh? 

[vicky_]

Just above where scheduled refresh is located, there's a section for credentials. Make sure you've logged in there.