Generate chart using axlsx gem

Hello Rubies,

        I have generated the graph via axlsx gem of ruby. Follow the easy steps to generate 3D stacked bar graph.

Install axlsx gem via

   gem install axlsx

Lets, generate graph.rb file and than run ruby graph.rb

require "rubygems"

require "axlsx"

 p = Axlsx::Package.new
 wb = p.workbook

 wb.styles do |s|

    wb.add_worksheet(:name => "Bar graph demo") do |sheet|

        sheet.add_row ["A Simple Bar Chart"]

        sheet.add_chart(Axlsx::Bar3DChart, :start_at => "A1", :end_at => "F27", :grouping => :stacked, :show_legend => false, :shape => :box, :barDir => :col) do |chart|
         chart.valAxis.title = "Volumes"
         chart.catAxis.title = "Periods"
         chart.add_series :data => [1,2,3], :labels => ['Mar', 'Apr','May'], :colors => ['92D050', '92D050', '92D050']
         chart.add_series :data => [4,2,6], :labels => ['Mar', 'Apr', 'May'], :colors => ['FFFF00', 'FFFF00','FFFF00']

       end

   end  

end

file = File.open('/home/Desktop/graph.xlsx', 'w')
p.serialize(file)

Lets invoke ruby graph.rb on console and get the stacked bar chart.