I have a range of data in collumns that I wish to combine into one cell at
location E3 (with comas so it should look like 9,5,10b,4). The range is
AE3:BG3 but some cells are blank. The values in the cells are just numbers
but I dont want to add them, just display them. Any tips are appreciated.

the data looks like this:
AG AH AI AJ -
11 9 23 24 18 21 3 4 8 10b 15 16 20 17

11 18 21 4 10b 15 16 20 17