We test export as URL feature as another mechanism to Import from Arrow. Fork this page then add external links to the very long url the arrows app provides.
Marc's Three Loops 
as shared in matrix.
Marc & Kerry's Process as shared in a fork.
We extract node names from node caption, relation names from relationship type, and graph rows from fromId, type, and toId in that order.
http://ward.dojo.fed.wiki/assets/pages/import-from-arrow/arrow-url.html
We have now added a link in the generated pages to an interactive driver tree rendering. Here is a large tree to get an idea were this might be going. example
One way to get a large graph is to merge a number of small ones. See Merging Graphs from Arrow