I want to try every combination of 10 numbers out of 1 to 64 (I reckon
there are about 1,300 odd but that is just my intuitive guess rather
than any mathematical knowledge.

I should think there is a for...next loop over a few layers that would
do it but I cannot for the life of me figure it out not having a maths
background. Can anyone help me out?

Kind regards, mark