Are there many differences between version 2 and 2.1? Does v2.1 have an excel worksheet like other versions have in the past?

We have created several resources to help guide you through the standard modifications introduced between v2 and v2.1. You can find those resources at https://www.fitwel.org/resources/. If you still have questions upon review of these resources, please feel free to contact us via the "Contact Us" form on the Fitwel Help Center homepage and we'd be happy to assist.