$LOAD_PATH.unshift "#{File.dirname(__FILE__)}/../lib" require 'axlsx' p = Axlsx::Package.new wb = p.workbook ##Generating A Pie Chart #```ruby wb.add_worksheet(:name => "Pie Chart") do |sheet| sheet.add_row ["First", "Second", "Third", "Fourth"] sheet.add_row [1, 2, 3, "=PRODUCT(A2:C2)"] sheet.add_chart(Axlsx::Pie3DChart, :start_at => [0,2], :end_at => [5, 15], :title => "example 3: Pie Chart") do |chart| chart.add_series :data => sheet["A2:D2"], :labels => sheet["A1:D1"] end end p.serialize('pie_chart.xlsx') #