"SU" wrote in message
...
I have just seen an excel spreadsheet that had a similar view feature as in
a
MS project file. The first three columns were numbered 1,2&3 and it had a
plus sign which when clicked displayed their respective subtasks. Hope I
have
explained this properly!

Can anyone tell me what this feature is called in Excel. Where can I learn
how to do this. Many thanks in advance.

Data Group and Outline
You can do this for rows or columns.