new_contents: import re
  
  NEWLINE_WITHIN_COLUMN = '\r\n'
  CSV_LINE_TERMINATOR = '\r\n'
  CSV_FIELD_DELIMITER = ','
  FD_REPLACED = None
  
  def is_header(str):
    return all([x.isupper() or x.istitle() for x in re.split('\W+', str)])
  
subject: Create headerutil.py