pulling strings and numbers from a cell array

I've come across a large number of people whom have solved similar problems, however I am having difficulty adapting the solutions to fit my current need. I have attached both the sample text file (.mpt) and my .m file in the hopes that someone can guide me to a solution that I understand.

What I am trying to do is import data from a text file which contains both numerical data and strings which describe the sample and generate a plot which manipulates the numerical values of matrix A (see .m file) and use strings to identify the axes, title, misc information of the given sample in the plot. The end goal of this project is to run batch processing on a large number of text files within a containing folder and subfolders to output plotted .jpg files of the same filename (and do so whenever the text file has newly appended data). I'm not necessarily asking someone to solve this entire problem for me, but I would greatly appreciate any and all guidance.

I've already asked a few friends whom are more experienced in Matlab, so if anything is unclear about what I am trying to do I can elaborate further with examples