Decrease gap width % under "format data series" in generated excel file using epplus in c#

Sep 24, 2015 at 8:58 AM
I want to decrease gap width % under format data series in when i generate excel file in c#.
i am using epplus to generate excel with chart that is eChartType.BarClustered but it's very thin and also set chartObj.SetSize(400,180)
Could anybody give me any solution?
Many Thanks!