Hi,

Recently I was tryinig to work on Permutation Combination keys in excel. The problem I was facing was I had a set of 12 characters and I wanted to know how many combinations of 3 letters can be generated and what are they. I tried using PERMUT, CONCATINATE, etc functions but failed. can someone please help me in this.

Problem Example:

A B C D E F G H I J K.

ABC, ABB, ACC, BAA, BAC, BCC, BBB, CAA, CAB, CCC.........????

Regards
Ashish