def archiveYahooMessage(file, archiveFile, messageYear, format):
     try:
          f = open(archiveFile, 'a')
          if f.tell() == 0:
               f.write("<style>pre {white-space: pre-wrap;}</style>\n");
          f.write(loadYahooMessage(file, format))
          f.close()
          print ('Yahoo Message: ' + file + ' archived to: archive-' + str(messageYear) + '.html')
     except Exception as e:
          print ('Yahoo Message: ' + file + ' had an error:')
          print (e)