Create rows by combining columns

Hi irfan_abdrhman ,

Suppose we have:

Please try this:

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("Zc+7CoNAFIThd9nawlldL89hKYuQYJFASGPePyKcmQG7n1Oc4VvXtPwe7/15bEhN+t4yKztlryzKQTkqJ+VsE+3Zr2P/XGNX5Iguoo8oEUPEGDFFzHzYptrIZQK40e9Gg9lgOJgOxoP5YMAsIIUgETSCSFAJMkEnCAWl50atfw==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [SubjectNames = _t, Column2 = _t, Column3 = _t, Column4 = _t, Column5 = _t, Column6 = _t, Column7 = _t, Column8 = _t, Column9 = _t, Column10 = _t, Column11 = _t, Column12 = _t, Column13 = _t, Column14 = _t, Column15 = _t, Column16 = _t, Column17 = _t, Column18 = _t, Column19 = _t, Column20 = _t, Column21 = _t]),
Names = List.Range(Table.ColumnNames(Source), 1, (Table.ColumnCount(Source)-1)/2 ),
Col_Names = {"ColumnNames", "ObjectNames", "ItemNames"},
Group = Table.Group(Source, {"SubjectNames"}, {{"Data", each Table.FromColumns( {Names} & List.Split(List.Skip(Table.ToRows(_){0}), List.Count(Names)), Col_Names)}}),
Expand = Table.ExpandTableColumn(Group, "Data", Col_Names, Col_Names)
in
Expand

Best Regards,
Gao
Community Support Team

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