Hi David,
I’m not familiar with that file, but it has been referenced a few times in this discussion forum, as you have seen:
Based on the documents linked in (1), it seems to be related on the subject of transmissions between locations. However, looking at the file contents pasted in (2), I don’t know how to get the number of transmissions from the matrix rates, or if that is even possible.
If you are looking to get the number of transmission lines, I recommend the approach I outlined in the last paragraph of my reply above. If you haven’t written a script like this before, I suggest using Python and the json
library.
Best,
Victor