public interface IXlTableColumnCollection :
    IXlReadonlyCollection<IXlTableColumn>,
    IEnumerable<IXlTableColumn>,
    IEnumerable

Public Interface IXlTableColumnCollection
    Inherits IXlReadonlyCollection(Of IXlTableColumn),
             IEnumerable(Of IXlTableColumn),
             IEnumerable

IXlTable table;
// Specify an array containing column headings for a table.
string[] columnNames = new string[] { "Product", "Category", "Amount" };

// Create the first row in the worksheet from which the table starts.
using (IXlRow row = sheet.CreateRow())
{
    // Start generating the table with a header row displayed.
    table = row.BeginTable(columnNames, true);
    // Specify the total row label.
    table.Columns[0].TotalRowLabel = "Total";
    // Specify the function to calculate the total.
    table.Columns[2].TotalRowFunction = XlTotalRowFunction.Sum;
    // Specify the number format for the "Amount" column and its total cell.
    XlNumberFormat accounting = @"_([$$-409]* #,##0.00_);_([$$-409]* \(#,##0.00\);_([$$-409]* ""-""??_);_(@_)";
    table.Columns[2].DataFormatting = accounting;
    table.Columns[2].TotalRowFormatting = accounting;
}

// Generate table rows and populate them with data.
using (IXlRow row = sheet.CreateRow())
    row.BulkCells(new object[] { "Camembert Pierrot", "Dairy Products", 17000 }, null);
using (IXlRow row = sheet.CreateRow())
    row.BulkCells(new object[] { "Gnocchi di nonna Alice", "Grains/Cereals", 15500 }, null);
using (IXlRow row = sheet.CreateRow())
    row.BulkCells(new object[] { "Mascarpone Fabioli", "Dairy Products", 15000 }, null);
using (IXlRow row = sheet.CreateRow())
    row.BulkCells(new object[] { "Ravioli Angelo", "Grains/Cereals", 12500 }, null);

// Create the total row and finish the table.
using (IXlRow row = sheet.CreateRow())
    row.EndTable(table, true);

Dim table As IXlTable
' Specify an array containing column headings for a table.
Dim columnNames() As String = { "Product", "Category", "Amount" }

' Create the first row in the worksheet from which the table starts.
Using row As IXlRow = sheet.CreateRow()
    ' Start generating the table with a header row displayed.
    table = row.BeginTable(columnNames, True)
    ' Specify the total row label.
    table.Columns(0).TotalRowLabel = "Total"
    ' Specify the function to calculate the total.
    table.Columns(2).TotalRowFunction = XlTotalRowFunction.Sum
    ' Specify the number format for the "Amount" column and its total cell.
    Dim accounting As XlNumberFormat = "_([$$-409]* #,##0.00_);_([$$-409]* \(#,##0.00\);_([$$-409]* ""-""??_);_(@_)"
    table.Columns(2).DataFormatting = accounting
    table.Columns(2).TotalRowFormatting = accounting
End Using

' Generate table rows and populate them with data.
Using row As IXlRow = sheet.CreateRow()
    row.BulkCells(New Object() { "Camembert Pierrot", "Dairy Products", 17000 }, Nothing)
End Using
Using row As IXlRow = sheet.CreateRow()
    row.BulkCells(New Object() { "Gnocchi di nonna Alice", "Grains/Cereals", 15500 }, Nothing)
End Using
Using row As IXlRow = sheet.CreateRow()
    row.BulkCells(New Object() { "Mascarpone Fabioli", "Dairy Products", 15000 }, Nothing)
End Using
Using row As IXlRow = sheet.CreateRow()
    row.BulkCells(New Object() { "Ravioli Angelo", "Grains/Cereals", 12500 }, Nothing)
End Using

' Create the total row and finish the table.
Using row As IXlRow = sheet.CreateRow()
    row.EndTable(table, True)
End Using