Need to Process XML Spreadsheet

Quick Prototype result:

Variables and Namespace Setup:
grafik

grafik

We are tricking the datatable conversion with the help of LINQ and JSON

arrJObjects =

(From row In xDoc.Root.Descendants(xnsDefault + "Table").First().Descendants(xnsDefault+"Row")
Where row.Elements().Count > 5
Let JPrps = row.Elements(xnsDefault + "Cell").Select(Function (x,i) New JProperty("Col" & i.toString, x.Value)).toArray
Select jo = New JObject(JPrps)).toArray

We filter for rows having more then 5 cells
then we are creating JProperties from the cell and its value
we convert it into a JObject
And return it as an array of JObjects

dtResult =
JSonConvert.DeserializeObject(Of DataTable)(JsonConvert.SerializeObject(arrJObjects))

Serializing arrJObject to JSON and desrializing it to datatable will create us the datatable

Next Things you can do: Handling the first row and assign it as column headers

Also have a look here:
Handling XML Namespaces:

LINQ Starter

Find starter help here:
ppr_XMLBox_SpreadSheetXML.xaml (8.3 KB)