Bonsoir,
Une variante :
let
Source = Excel.CurrentWorkbook(){[Name="Tableau2"]}[Content],
SupprCol = Table.SelectColumns(Source,{"Name", "Fusionné"}),
GroupBy = Table.Group(SupprCol, {"Name"}, {{"Tbl", each _, type table [Name=text, Fusionné=text]}}),
AjtRec = Table.AddColumn(GroupBy,"Records", each
[Date = Text.Trim(Text.BetweenDelimiters([Tbl][Fusionné]{1}, "LE", "EN")),
Facture = Text.Trim(Text.AfterDelimiter([Tbl][Fusionné]{0},"N"))])[[Name],[Records]],
Expand = Table.ExpandRecordColumn(AjtRec, "Records", {"Date", "Facture"}, {"Date", "Facture"})
in
Expand
Bonne soirée