Error while importing cfg file in comtrade viewer

Error while importing cfg file in comtrade viewer

Hello Team,
I am facing an error while I import the .cfg file in the Comtrade viewer.
I have attached the screenshot below.
Please suggest a possible solution.
It happens when I click on open button and select the .cfg file from the extraction folder.

This is a migrated post! Originally posted on 24.08.2018 by user joelprasad. Please be aware that information can be outdated.