Perhaps you & Michel are communicating on a level that transcends the
written message & is beyond my comprehension

, but based on the original
question you might try:
Click in the Table, go to Table> Select> Table
In the Elements Gallery click the QuickTable style you want to apply
Unless I'm completely missing the intent of your request that should do what
you want - although results may vary depending on content of the table as
well as any merged cells, etc. Otherwise it works for me.
HTH |:>)
Bob Jones
[MVP] Office:Mac