I am collecting data on school children competing in competitions in my area.

I have their names, their ages and their year group.

Is it possible for excel to create unique ID numbers for each child and to
count how many children have competed, how new children (first timers) have
competed, and how many have competed from each school.

Any help on this matter, or any different ways of completing the outcome
will be greatfully recieved.

Thank you

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Thanks.... Dan