Numerical outline
I would foressee a numerical outline, easy to build by foreseeing 3 extra fields: Father (for each node, who is my father), Level (I'm a node of which level), Order (Within my level, which is my order or ranks in the sequence). The numerical outline is the a fourth field computed as a concatenation: e.g. 01.01.02.05
When exporting to excel a macro could rebuild this outline and have the Excel 'Data' tree (green 'group' arrow) automatically built.
2
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Henri
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