Hans,

I need to use two extra columns:

in e2 put =if(b2="",e1,b2)
in f2 put =if(c2="",f1,c2)
in e1 put =b1
in f1 put =c1
in a1 put e1&f1&d1

then copy down


then copy down


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Hope this helps
Martin Fishlock, Bangkok, Thailand
Please do not forget to rate this reply.


" wrote:

Is it possible to solve this with only formulas, no coding?
data is organized in this way:
B C D
M1 K01 1
2
3
K02 1
2
3
M2 K07 1
2
3
In column A I need
M1K011
M1K012
M1K013
M1K021
....

The answer is probably outthere somewhere, but I have no clue on how
to look for it.

Thanks in advance,
Hans