In this file, we explain how to read the non-positivity data files. These files give examples of Weyl group elements for each non-distinguished rho of each exceptional group, for which the associated score (zeta(w)_Delta in the article) is non-positive. These files were created by the non-pos-weyl-elements.py code file, which can be found at: https://www.jleake.com/code/distinguished-rho-positivity/ Each file begins with the associated Dynkin diagram, with a labeling of the nodes of the diagram 1 through n. After that, there is a list of entries, one for each non-distinguished rho. In each entry, we give a Weyl group element (and its score) which has non-positive score with respect to the given rho. The Weyl group element is represented in two ways: first as a product of simple reflections (where the reflections are labeled via the Dynkin diagram labeling), and second as a matrix (see the SageMath docs for the presentation of the simple roots as vectors). The score is then given as a weighted sum of simple roots (where the simple roots are labeled via the Dynkin diagram labeling).