NYC Department of Education provides free Microsoft Office 365 Education for Students to students and families in the NYC public school system in 2019-2020. After registration at the websites below, you will be able to install up to 5 copies of the latest Microsoft Office suite for their PCs and Macs and up to 5 copies for their iOS or Android devices too.
https://www.schools.nyc.gov/school-life/support/microsoft-software