Step and Line Chart Together in a same graph

Hello,

I am trying to create a graph containing both step chart and line chart, like the attached snapshot. Data are also attached herein. Using "date axis" option in axis type, I am getting the step chart; but after adding line chart, the graph is becoming messed up. How can I fix this?

Thanks in advance.

Roshu
Capture.PNG
ExcelForum_Roshu.xlsx