Error when runnint tml2csv

Hi,

In Windows 10 I'm trying to convert a tlm file containing multiple flights for the day into csv files. When I run the command given in the pdf, I get 1 csv file and in the command prompt I see multiple "WARNING: Value can not be decoded! No codec found for type {43}" messages. That csv file contains data for only 1 flight. Also I'm using version 3 of the tool.

Any suggestions?