Two places, same file: Manifyst → Events → Export on the event's row, or open the event, go to the Signups tab, and click Export CSV.
The file has one row per signup: name, email, phone, quantity, slot, status, signup date, notes, and a column for every custom form field on that event. It opens in Excel, Numbers, or Google Sheets.
Use it for a printed sign-in sheet, name badges, or handing a roster to whoever is running the shift.
The CSV is the roster. For the audit trail — every capacity change with a timestamp — use Export CSV on the Stock History screen instead. See Activity Log and Stock History.