Are you asking about the .pdo files in the armory?
What file did you download? If it's a pep file meant for paper or cardstock that you need for foam I'm sure myself or another person here would be happy to convert it to foam to help.
In general, at least in Pepakura Designer/Viewer, here are the line settings.
View attachment 339581
I'm running a bit under the assumption that the file you downloaded is a papercraft version and shows a lot more fold lines, has tabs displayed, and includes all the pieces vs some removed to account for foam thickness.
For reference, here's an
old thread on folds for pepakura that starts showing what mountain vs valley folds look like and using them for the paper method.