Tree from Parent/Child Pairs

[Commish]

I have a list of organizations in 2 columns - parent in column A, child in column B.

It could look like this:
A B
B C
B D
C E
D F
F G
and so on.

Is there an easy-ish way to convert this to a list of unique branches? Where the result would look like:
A B
A B C
A B C E
A B D
A B D F
A B D F G

Any thoughts?

 

[SriramNA]

I had downloaded Excel files on the internet with names like Ctree
(Classification Tree) and TreeView for a similar task.

--
Sriram

"Commish" wrote in message

I have a list of organizations in 2 columns - parent in column A, child in
column B.

It could look like this:
A B
B C
B D
C E
D F
F G
and so on.

Is there an easy-ish way to convert this to a list of unique branches? Where
the result would look like:
A B
A B C
A B C E
A B D
A B D F
A B D F G

Any thoughts?