help.rb

  def retrieve_data(sheets)
    array = get_values(sheets)
    p array
  end

  def get_values(sheets)
    sheets.each do |s|
      puts "Working..."
      s.each do |row| unless row.nil?
        row.cells.map do |cell|
          cell.value.class unless cell.nil?
          end
        end
      end
    end
  end