About spliting the excel sheet based on different types of data /

Assign Activity

TableList | List(Of DataTable) =

dtData.AsEnumerable().GroupBy(Function (x) x("Type").toString.toUpper.Trim).Select(Function (x) x.CopyToDataTable).toList

Then loop over the Table List and write out ech iterated Table to a Worksheet
Worksheetname = LoopedTableVar.Rows(0)(“Type”).toString