To setup Dashboard Definition Columns from the Project Center select Reports...Dashboard click the New or Modify button from the Definition tab and select the Columns button.
Define how the fields will look in Excel on the Column Format Setup screen. This allows you to choose the Fields Format, Column Caption, Column Width, and Field Alignment. For details on how to use the Fields, Columns and Format Cells buttons for Dashboard Definition please see the Customize Current View section.
When setting up Dashboard Template you also need to define your setting in the General, Filter tabs, Fields, Columns and Format Cells in the Definition tab.