Your first step will be to actually read the files; they are not raw data, but a (presumably proprietary) raw file type. See this Stackoverflow question for how to get them into Python.
Once you have things in a Scipy or Numpy array, you should be able to convert. Sage code:
import numpy l=numpy.array([[1.0,2.0],[2.0,3.0]],dtype=float) M = matrix(l) M
However, keep aware that this functionality perhaps isn't used as much, so there may be subtle things you have to do - for instance, I had to declare the data type of my Numpy array.