Where does exp.dat file originate?

When I try a run I get 2.3 run solve repeating infinitely. I checked the code that starts the sequence and it checks exp.dat with -s to ensure that there is an exp.dat file and that the value isn't 0. I checked the exp.dat file and it contains
"0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65 0.70 0.75 0.80 0.85" which i'm assuming is the weights. I have no idea why the exp.dat file would contain this but as i understand it is is supposed to contain binary lines coordinating to the number of amino acids of my sequence. Where is this file generated?