ExcelApplication xla = new ExcelApplication();
Workbook wb = xla.Create();
Worksheet ws = wb.Worksheets[0];
Area a = ws.CreateArea(4, 4, 15, 6);
Border b = a.BorderAround;
BorderPart bp = b[Border.Part.Left];
Dim xla As New ExcelApplication()
Dim wb As Workbook = xla.Create()
Dim ws As Worksheet = wb.Worksheets(0)
Dim a As Area = ws.CreateArea(4, 4, 15, 6)
Dim b As Border = a.BorderAround
Dim bp As BorderPart = b.Item(Border.Part.Left)