How to treat table with stacked data

Hello AndreWahlbuhl 

I don't know how the document header is structured and if you need this information somehow too. I assume that you have anonymous column header and then stacked information whereas one row is structured in 3 rows like this. In case you have a document header, you would need somehow to eliminate your header (by deleteing the first rows or by checking one of your column until a certain value is reached - maybe "Name" in column1

In this case you can split the table with pagesize 3 and then transform the list of tables by referencing the column and the row. After that the records can be transformed to a table. Would you need also something of your document header, you could now add an additional column where you referencing your first step.

let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("jY+7CsMwDEV/RXgOwXGW0rnN2KFJJ5PBUEEMrh0kJdC/b+I+SDsVNIhzH0jWqpO7oSrUZ1pxMnFecGTVF3ZFJHhdWOOj5yGv5ylC53P2gGNId7gw0qtmTR2JEm2b38Lq09UWN86HXJp1U5eVKY02GvRub8zC/0MdsrRI89cZz26QBIScwowwJBaIP29ne/8A", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [Column1 = _t, Column2 = _t, Column3 = _t, Column4 = _t, Column5 = _t, Column6 = _t]),
    SplitTable = Table.Split(Source,3),
    TransformListsOfTables = List.Transform
    (
        SplitTable,
        each [1= [Column1]{0}, 2= [Column5]{0}, 3= [Column6]{0}, 4= [Column1]{1}, 5= [Column2]{1}, 6= [Column3]{1}, 7= [Column4]{1}, 8= [Column1]{1}]
    ), 
    CreateTableFromRecords= Table.PromoteHeaders(Table.FromRecords(TransformListsOfTables))
in
    CreateTableFromRecords

this is the outcome

Copy paste this code to the advanced editor in a new blank query to see how the solution works. 

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Jimmy