Convert an xlsx file to a csv

xlsx2csv

#!/usr/bin/env ruby

require 'rubygems'
require 'fastercsv'
require 'roo'

if ARGV.size >= 1
  file = ARGV.first
  
  if file && File.exists?(file) && File.extname(file) == '.xlsx'
    basename = File.basename(file, '.xlsx')
    puts "Converting #{basename} to csv"

    excel_file = Excelx.new(file)

    dir = File.dirname(File.expand_path(file))
    csv_filename = File.join(dir, "#{basename}.csv")
    puts "Saving #{basename} to #{csv_filename}"
    excel_file.to_csv(csv_filename)
  end
else
  puts "No file specified"
end