This is the file I'm apparently supposed to add the code

gistfile1.rb

# encoding: utf-8
# http://www.sebgrosjean.com/en/news/2012/1

require 'csv' # adds a .to_csv method to Array instances

class Array
  
  BOM = "\xEF\xBB\xBF" #Byte Order Mark UTF-8

  alias old_to_csv to_csv #keep reference to original to_csv method

  def to_csv(options = Hash.new)
    options = options.merge(:force_quotes => true)
    # override only if first element actually has as_csv method
    return old_to_csv(options) unless self.first.respond_to? :as_csv
    # use keys from first row as header columns
    out = first.as_csv.keys.collect{|k| k.to_s.titleize }.to_csv(options)
    # collect all entries as CSV, ensure that no line break is present within values
    self.each { |r| out << r.as_csv.values.to_csv(options).gsub(/\r?\n/, ' ').strip! + "\n" }
    # Force encoding to UTF-16LE and add Byte Order Mark for Excel compatibility
    (BOM + out).force_encoding("UTF-8")
  end

  def to_tsv(options={})
    to_csv(options.merge(:col_sep => "\t"))
  end
end