Making a list of all possible combinations

I have the Letters A to U and I want to make a list of all possible combinations of 4 of these letters (e.g. ABCD,ABCE,ABCF,FGHI,TRSA and so on). The order of the letters is not important so ABCD is same as BACD.

Hope someone will be able to help.

Any help or advice gratefully received,

Jack

Here you go:

Please Login or Register  to view this content.

A total of 5,985 combinations.

That is absolutely excellent thank you

Jack