Expand list with records to columns

Hi a_hauser ,

Please refer to the following steps:

let
    Source = [ID={"ID_1","ID_1","ID_2","ID_3","ID_3","ID_3"},ColumnName={[a=11],[a=22],[a=33],[a=44],[a=55],[a=66]}],
    #"Converted to Table" = Record.ToTable(Source),
    #"Pivoted Column" = Table.Pivot(#"Converted to Table", List.Distinct(#"Converted to Table"[Name]), "Name", "Value"),
    #"Expanded ID" = Table.ExpandListColumn(#"Pivoted Column", "ID"),
    #"Expanded ColumnName" = Table.ExpandListColumn(#"Expanded ID", "ColumnName"),
    #"Grouped Rows" = Table.Group(#"Expanded ColumnName", {"ID"}, {{"data", each Table.Transpose(Table.SelectColumns(_,{"ColumnName"}))}}),
    #"Expanded data" = Table.ExpandTableColumn(#"Grouped Rows", "data", {"Column1", "Column2", "Column3", "Column4", "Column5", "Column6", "Column7", "Column8", "Column9", "Column10", "Column11", "Column12"}, {"Column1", "Column2", "Column3", "Column4", "Column5", "Column6", "Column7", "Column8", "Column9", "Column10", "Column11", "Column12"})
in
    #"Expanded data"

Best Regards,
Gao
Community Support Team

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