Question

I have an Excel sheet that looks like this:

  |A     B           C                      D
-----------------------------------------------------------------------------------
1 |ID    PARENTID    VALUE                  RESOLVED VALUE (how to generate this?)
===================================================================================
2 |0     0           /root                  /root
3 |1     0           /one                   /root/one
4 |2     0           /two                   /root/two
5 |3     0           /three                 /root/three
6 |4     3           /child-one-of-three    /root/three/child-one-of-three
7 |5     3           /child-two-of-three    /root/three/child-two-of-three

Each row has an ID and a PARENTID. I want to generate the content of the last column, RESOLVED VALUE by resursively appending the VALUE of each row.

How can I do this in Excel?

Answer 1

Assuming your data start in cell A3:

=IF(B4=A4,C4,VLOOKUP(B4,$A$3:$D$5,4)&C4)

You’ll have to expand $A$3:$D$5 to the size of your data array.