A revised version of the RSGB-Ofcom EMF calculator was released a few days ago, it addressed font/formatting issues

RSGB-Ofcom EMF Calculator - https://rsgb.services/public/publications/emc/emf-calculator-v0.1.1%20.rsgb.7b2.xlsx

RSGB EMF - https://rsgb.org/main/technical/emc/emf-exposure/