Hi everyone

I'm attempting to provide probability rates for a friend using six six-sided dice. Note that there are symbols not numbers on them. He wants to know the probability (for example) of rolling all six dice differently, compared to rolling two of the same and four different; or two of the same, another two of the same and the last two different.

I want to be able to extract all instances of where the above (and other rolls) occur, regardless of order.

I've made a huge column showing all ~48000 probabilities in excel already
eg
AAAAAA
AAAAAB
AAAAAC
AAAAAD
AAAAAE
AAAAAF
AAAABA
...
FFFFFF


Any suggestions as to how I should do this? Is it possible with Excel? Might it be worth changing all letters to numbers?
I'm thinking my next step is to learn programming.

I have attached a sample of what I have so far. Any advice regarding if I should be approaching this slightly differently would be great!