i want to display data from text file in list view and in tree view root will be file name, but i dont know how to do it, the problem is with displaying text file data in list view, i don't know anything about that.
text file data is very simple
it is just a square matrix of double values like:

21.06 34.06 5.0
12.78 45.25 6.9
12.89 45.98 5.5

in list view i want to display it.