Bonjour,
Une autre proposition, identique ou presque que Zebulon2.
Cdlt.
let
Delimiter=Character.FromNumber(167),
Source = Csv.Document(File.Contents("C:\Users\jeane\Downloads\fichier-csv.csv"),4,Delimiter,ExtraValues.Ignore,1252),
PromotedHeaders = Table.PromoteHeaders(Source, [PromoteAllScalars=true]),
AddedCustom = Table.AddColumn(PromotedHeaders, "Colonne5", each [Colonne1]&[Colonne4])
in
AddedCustom