i can try to go through wikipedia. i do not understand some of this language. I understand that editing notepad would likely remove fields, and something like that, but I am not sure how clean it will be in Thunderbird.

I think that trying to learn different ways that something is programmed (despite being able to edit it in notepad), still requires comparing placement of the values. I may have looked at it prior, but I will look at the file, and try to find the information, and see if it helps me. strings of values can become complex when not understanding them.