foo.rb

require 'rubygems'
require 'roo'
require 'iconv'
require 'mysql'
require 'deep_merge'
require "cwo_import/version"

module CwoImport

  def self.pull(start_year, end_year, table, excel, measures, states, exceptions, conn, data_dir)

    puts 1.alph
    
  end
  
  Alph = ("A".."Z").to_a
  def self.alph
    s, q = "", self
    (q, r = (q - 1).divmod(26)) && s.prepend(Alph[r]) until q.zero?
    s
  end
  
end