you can display like you want but there are limtations.In the cell you want
to display your combinations draw your borders and a diagonal line.It works
best if the cell is about twice as high as the std excel setting.Have your
vertical alignmebt set to centre,and get your numbers into the cell from two
other cells like =A1&" "&A2.You can use your original cells for any
caculations.You will need to experiment with he number of spaces " "
depending on your data.or have a dynamic fomula using len() and find() and
rept() and substittute()