Joel provided two subs......the Sub Cominations() which runs

Sub recursive(ByVal Level As Integer, ByVal Position As Integer)

Since you're not familiar with VBA and macros, see David McRitchie's site for
more on "getting started".

http://www.mvps.org/dmcritchie/excel/getstarted.htm

In the meantime..........

First...create a backup copy of your original workbook.

To create a General Module, hit ALT + F11 to open the Visual Basic Editor.

Hit CRTL + r to open Project Explorer.

Find your workbook/project and select it.

Right-click and Insert>Module.  Paste the code in there.  Save the
workbook and hit ALT + Q to return to your workbook.

Run or edit the macro by going to Tool>Macro>Macros.

You can also assign this macro to a button or a shortcut key combo.

Gord Dibben  MS Excel MVP