Not to denigrate what is clearly a labor of love and noble intentions (this is, of course, the necessary preamble for a comment in which I'm going to denigrate

Not to denigrate what is clearly a labor of love and noble intentions (this is, of course, the necessary preamble for a comment in which I'm going to denigrate what is clearly a labor of &c.) -- but the idea of a complex 72-worksheet Excel file put together by someone who has never heard of source control ("Komanoff has more than 2,000 versions saved on a hard drive") is making my left eyelid twitch uncontrollably. I wonder what the unit testing situation is, here...