In the step we specify "Source data" in the "Series" tab I want to refere for "Values" instead of "='Daily Progress'!$C$27:$C$78" I want to put "ChartAct" which is exactly the name defined for the range "Daily Progress'!$C$27:$C$78".
When I put in "Values" box "=ChartAct" the line chart is disapears! I don't know how to say excel to understand this name is for the same range?!