The exercise-tree utility is licensed under LGPL and can be found at https://mathdox.org/svn/repos/public/mathdoxutils/exercise-tree To include: 1) copy the files in this directory to ant/exercise-tree/* 2) edit exercise-tree.properies to change the paths 3) add an tag inside the tag in the main build.xml as below: 4) the new target "exercise-tree" should create exercise-tree.xml files 5) to do this automatically add this to the depends attribute of the default target