Number of unique attributes that multiple people have

[rkhuntjr]

Hello all. This is kinda hard to explain, so you might want to just check out the attached spreadsheet to see what I need.

I need Excel to tell me the number of unique attributes that multiple people (each person having multiple entries with multiple attributes) have.

Is Excel even capable of doing this? My spreadsheet has 7000+ entries, so I can't really have an improvised solution.

Thank you for your help!
Richard