I have a sweet spot for this library.
I coded it the summer my daughter was born in 2008, while back in Italy for three months. It is one of my ﬁrst forays into functional programming.
I coded most of them with the sea in front of me. I would bet that it is one of the most Excel-compliant libraries in existence across all languages.
I am happy that the tests (all 199,252 of them) still pass! This is a testament to good backward compatibility in the language.
Thanks to James for keeping it alive.