Hello there,
if I understood correctly,
you scrap web datas to fill a dataTable and then write in an Excel file.
From that given datatable, you want to have datas presented in another way, and write in another Excel file.
I would build another dataTable with the columns you want (Employee ID,First Name, LastName) and create row for each row of first datatable, with good informations, using a simple split(" ") to separate fullName.
Then Write Range workbook on your other Excel file.
Using LINQ, you can write it to another dataTable(Assuming dt_output has the defined schema):
dt_output = dt_inputData.AsEnumerable.Select(Function(row) dt_output.Rows.Add({row(“Employee ID”).ToString, row(“Name”).ToString.Split(" “)(0),row(“Name”).ToString.Split(” ")(1)})).CopyToDataTable()