sure the way is so easy, but i'm a beginner who do not enough time to try and
solve.
problem is..

coloumn B contains names. coloumn A numbering the recorded names.
i would like to insert a formula for auto numbering.
for example if there is nothing in B7, A7 empty.
and if B8 is contains data A8 should be A6+1.

thanks in advance for your help.