The accompanying article and spreadsheets represent an excellent learning, teaching, and research tool. The pertinent features from other spreadsheets on the newstats.org site are combined to good effect in the context of the analysis of randomized controlled trials and crossovers. The inserted comments feature in the spreadsheets is very helpful for students and researchers familiarizing themselves with the techniques, serving as a quick desktop reference without having to constantly go back to the associated article or other literature.