A child-parent to tree demonstration (no VBA or other programming used) . may be useful.

hi,everyone.
the picture above is the result of a way used to generate automatically a tree structure (pink part) from given child-parent relationship data(white part).
no VBA or other programming are used in it. of course ,the secret is that the iterative calculation is used.
check the file in attachment to see how it works. hope it will be helpful as i know some people are looking for things like this for some time. thanks!