Assign Activity:
Left side: TableList | DataType: List(Of DataTable)
Right side:
(From d in YourDataTableVar.AsEnumerable
Group d by k1=d(“A”).toString.Trim, k2=d(“B”).toString.Trim into grp=Group
Select t=grp.CopyToDataTable).toList
Afterwards you can iterate with a for each activity and write out the tables to excel