!!! XML
%Workbook{:xmlns => "urn:schemas-microsoft-com:office:spreadsheet", "xmlns:html" => "http://www.w3.org/TR/REC-html40", "xmlns:o" => "urn:schemas-microsoft-com:office:office", "xmlns:ss" => "urn:schemas-microsoft-com:office:spreadsheet", "xmlns:x" => "urn:schemas-microsoft-com:office:excel"}
  %Styles
    %Style{"ss:ID" => "Title"}
      %Font{"ss:Bold" => "1", "ss:Size" => "16"}
    %Style{"ss:ID" => "Header"}
      %Borders
        %Border{"ss:Color" => "#666666", "ss:LineStyle" => "Continuous", "ss:Position" => "Left", "ss:Weight" => "1"}
        %Border{"ss:Color" => "#666666", "ss:LineStyle" => "Continuous", "ss:Position" => "Top", "ss:Weight" => "1"}
        %Border{"ss:Color" => "#666666", "ss:LineStyle" => "Continuous", "ss:Position" => "Right", "ss:Weight" => "1"}
        %Border{"ss:Color" => "#666666", "ss:LineStyle" => "Continuous", "ss:Position" => "Bottom", "ss:Weight" => "1"}
      %Font{"ss:Bold" => "1", "ss:Color" => "#333333", "ss:Size" => "11"}
      %Interior{"ss:Color" => "#DDDDDD", "ss:Pattern" => "Solid"}
    %Style{"ss:ID" => "Content"}
      %Borders
        %Border{"ss:Color" => "#666666", "ss:LineStyle" => "Continuous", "ss:Position" => "Left", "ss:Weight" => "1"}
        %Border{"ss:Color" => "#666666", "ss:LineStyle" => "Continuous", "ss:Position" => "Right", "ss:Weight" => "1"}
        %Border{"ss:Color" => "#666666", "ss:LineStyle" => "Continuous", "ss:Position" => "Bottom", "ss:Weight" => "1"}
      %Font{"ss:Color" => "#333333", "ss:Size" => "11"}
  %Worksheet{"ss:Name" => "Sheet1"}
    - rtc_controller_name = params[:rtc_controller_name].presence || controller_name
    - rtc_class_name = rtc_controller_name.classify if rtc_class_name.nil?
    - @rtc_controller_name = instance_variable_get("@#{rtc_controller_name}")
    %Table
      %Column{"ss:AutoFitWidth" => "1"}
      %Row
        %Cell{"ss:StyleID" => "Title"}
          %Data{"ss:Type" => "String"}= "Tabel " + t(rtc_controller_name.classify.underscore)
      %Row{"ss:Index" => "3"}
        - params[:export_attribute_ids].each do |att|
          %Cell{"ss:StyleID" => "Header"}
            %Data{"ss:Type" => "String"}= att.split(';').first
      - @rtc_controller_name.each do |rtc|
        %Row
          - params[:export_attribute_ids].each do |att|
            - attribute = att.split(';').last
            - splitter = attribute.split('.')
            - splitter.unshift(rtc)
            - val = splitter.inject do |ret, n| 
              - if ret.respond_to? :collect
                - ret.collect(&(n.to_sym))
              - else
                - ret.try(n)
            - val = val.join(', ') if val.instance_of? Array

            - case val.class.to_s
            - when 'String'
              - cell_type = "String"
            - when 'Fixnum'
              - cell_type = "Number"
            - when 'ActiveSupport::TimeWithZone'
              - cell_type = "String"
            - when 'Date'
              - cell_type = "String"
            - when 'NilClass'
              - cell_type = nil
            - else
              - cell_type = "String"
            - if cell_type == nil
              %Cell{"ss:StyleID" => "Content"}
            - else
              %Cell{"ss:StyleID" => "Content"}
                %Data{"ss:Type" => cell_type}= strip_tags(val.to_s)