with open(file_name, "w") as file_handler:
file_handler.write(header_str)
for test in tbl_lst:
file_handler.write(",".join([str(item) for item in test]) + '\n')
with open(file_name, "w") as file_handler:
file_handler.write(header_str)
for test in tbl_lst:
file_handler.write(",".join([str(item) for item in test]) + '\n')