TEAMS - Download attendance reports from Teams meeting

You can download attendance from a team meeting. While you are in the meeting and there is still a participant in there with you

1. select Show participants
2. choose Download Attendee List
3. This will download a csv file which can be opened in excel. 

Here is a link to MS support article with more details. 

https://support.office.com/en-us/article/download-attendance-reports-in-teams-ae7cf170-530c-47d3-84c1-3aedac74d310?ui=en-US&rs=en-US&ad=US