Initializer to add some helpers into ruby console

consolis.rb

module Consolis
  def parse_xls(opts={})
    opts[:file] = "output" unless opts[:file].present?
    opts[:headers] = ["Important", "Data"] unless opts[:headers].present?
    opts[:data] = [["foo","bar"]] unless opts[:data].present?
    File.open(opts[:file]+".xls", "w+") do |f|
      f.write("<meta charset='utf-8'><table border=yes width=100%>")
      opts[:size] = 1 unless opts[:size].present?
      f.write("<tr>")
      opts[:headers].map do |header|
        f.write("<td>")
        f.write(header)
        f.write("</td>")
      end
      f.write("</tr>")
      opts[:data].map do |mapped|
        f.write("<tr>")
        mapped.each do |content|
          f.write("<td>")
          f.write(content)
          f.write("</td>")
        end
        f.write("</tr>")
      end
      f.write("</table>")
    end
  end
end
include Consolis