How to display data read from a .dat file in a GUI?

Hello to all,

I am a beginner at programming GUIs and reading files using Matlab. Therefore I am struggling against the following problem: I want to be able to read data from a .dat file, and then display that data in a GUI. A very basic example would be to have a .dat file containing "mass = 10; length = 8; result = mass*length;", then the code would have to:

1) import that data in Matlab

2) create a GUI displaying

" mass = 10;
length = 8;
result = 80".

Another important point: I'd like to be able to edit the mass & length directly in the GUI without having to change the .dat file...

Thank you very much for your help.