I want to group N elements which is a factor of 7 into groups of 3 randomly. For example, I have 21 elements:
Z S W
P M H
N Y V
J T X
D E F
C R K
A O I
I want to group them into 6 more sets. Now, all in all 7 sets. Group them into other sets without the element repeating in the row it has occupied before. For example, for letter P. "P" has occupied row 2 in set 1, it cannot occupy row 2 anymore in other sets. Therefore, each element must have occupied row 1-7 in all the sets.
Is that possible in excel?
*see attached excel file for the example output
Thank you.
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