All combination from several columns

[UK_D]

Hi All - New to the site and already after some help!
I'm looking to compile a list of all combinations across 23 columns in excel which I know will be quite a large list.
I've tried to tweak various coding that has been shared on the site but end up with errors (probably because I don't know what I'm doing with the code apart from changing variables to match my columns)

I have the below in excel and want to fetch all the combinations i.e A+A+A..... A+B+A....A+A+B...etc Is this even possible?

Data Set 1

Data Set 2

Data Set 3

Data Set 4

Data Set 5

Data Set 6

Data Set 7

Data Set 8

Data Set 9

Data Set 10

Data Set 11

Data Set 12

Data Set 13

Data Set 14

Data Set 15

Data Set 16

Data Set 17

Data Set 18

Data Set 19

Data Set 20

Data Set 21

Data Set 22

Data Set 23

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

B

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

D

D

D

D

D

D

D

D

D

D

D

D

D

E

E

E

E

E

E

E

E

E

E

F

F

F

F

F

F

F

F

F

F

G

G

G

G

G

G

G

H

H

H

H

H

H

H

 

[JamesCanale]

10^15 combinations. Too much to handle and it'll take too long to calculate in excel.