Feel free to give feedback on other ways to do this:
[ ] Write a tool that will analyze spells_us.txt for a specific era, and inject it into spells_new. (Keep in mind that many eras changed the columns fields.)
[ ] Write a tool that will generate spells_us.txt for each supported eqemu client (titanium, underfoot, sof, rof).
[ ] Figure out the latest spells_us.txt file we can for every expansion (right before next expansion came out) so we can snapshot.
[ ] Start discerning what PEQ edited on spells, if anything. ( I don't think they did, and support vanilla spell files)
Feel free to give feedback on other ways to do this: