See the table on this page [1]. The Office365 team is pretty aggressive about dropping support for IE8 and—beginning next year—IE9. [1] https://support.office

See the table on this page [1]. The Office365 team is pretty aggressive about dropping support for IE8 and—beginning next year—IE9. [1] https://support.office.com/en-US/article/Office-365-system-requirements-719254c0-2671-4648-9c84-c6a3d4f3be45 https://support.office.com/en-US/article/Office-365-system-r...