Create interoperability between spreadsheets and calendars
At the organisation where I work, timetabling is a major headache. Timetables are subject to negotiation and therefore go through multiple drafts with many people adding comments. This occurs in Word as it has good commenting features, but there is no simple way to get this into an electronic calendar format. A better approach would be to create the timetable within a spreadsheet (which would provide cells for commenting), and relevant columns could be shipped out to calendars (via ical). There is no easy way to do this within Teams / Office 365.