by Zeid Fanous.
Thank you Ken for that fast reply.
Unfortunately there is no reference to cohorts. the other way around this i guess is to filter out all users with the Cohort id and then download them and match them on an Excel file. Obviously this is not practical, but for 1 cohort it works.
its seems a bit odd that cohorts are not backed up when you download user list. I will start using 'departments' also in the user profile.
Thanks again Ken appreciate it.