When you use sign-in (optimized for excel), participants who are on the waiting list are not marked as such. They display the same as confirmed participants.
It appears the Sign In Sheet (Optimized for Excel) is not indicating when a participant is on the waiting list. However the regular Sign In Sheet report is. Thank you for bringing this to our attention and I will put in a ticket to get that fixed.
The Sign In Sheet Report (Optimized for Excel) and the Detailed Report (Optimized for Excel) now include a W/L column indicating whether a slot is on the waiting list.