Try this:
- Reports
- Usage Reports
- Active Hosts (Search by Date or Date Range)
- This will list all meetings within that time period. Towards the right is a Participants Column with a number. If you click that number, it should list out the participants for the individual meeting. I believe these can also be exported to CSV to open in a spreadsheet.
Additionally, you could go to the Dashboard https://zoom.us/account/metrics/dashboard and search on meetings and after selecting a meeting, see a list of participants as well as other information for the meeting. IP Address, user email, participant names, how they connected, meeting quality, etc..