Convert a WhatsApp txt file to csv.

usage: whatstk-to-csv [-h] [-f HFORMAT] input_filename output_filename

Convert a Whatsapp chat from csv to txt.

positional arguments:
input_filename        Input txt file.
output_filename       Name of output csv file.

optional arguments:
-h, --help            show this help message and exit
-f HFORMAT, --hformat HFORMAT
                        By default, auto-header detection isattempted. If does
                        not work, you can specify it manually using this