Hey guys!
I thought this might be interesting to other people! I built this little tool because I often found myself needing to quickly calculate a union, intersection, or difference of two lists, but there wasn't an easy way to it (aside from pulling up Excel and building a v-lookup).
I thought it might be useful to share, I've been using it a bunch to just quickly do some data operations and then drop the result into a SQL query or job processor.
Let me know if you have any feedback!