File.open( "#{ Rails.root }/tmp/#{ id }", 'w:iso-8859-15:iso-8859-15' ) { |f| f << Model.info_in_iso-8859-15 }
respond_to do |format|
  format.text { send_file( route, filename: 'info', type: 'text/plain; charset=iso-8859-15; header=present' ) }
end

def normalize_to_iso8859( string )
  if string and string.class == String
    string.gsub(/[u201cu201d]/, '"').gsub(/[u2013]/, '-').encode( "ISO8859-15" )
  else
    string
  end
end