The ACTIVATE team hosted an open data workshop with over 70 participants over a two-day period from October 20-21, 2021. The purpose of this workshop was to introduce the ACTIVATE project to a larger, international, pool of atmospheric sciences and applications communities. The first day of the workshop covered how to access and utilize ACTIVATE data, a case study on ACTIVATE Research Flight 12 – a statistical survey flight, and ended with a discussion on using data. Day two began with the second case study on Research Flights 13 and 14 – both of which were process study flights – and ended with a continuation on the discussion from the previous day. Materials from the workshop, including recordings from the two days are available at: https://www-air.larc.nasa.gov/missions/activate/docs/data_workshop/Oct2021.html.