[DefaultMember("Item")]
public class TableColumnCollection : WorksheetElement 

using( var doc = Workbook.Create( "test.xlsx") )   // Creates a Workbook named “test.xlsx”.
  {
    var worksheetA = workbook.Worksheets[ 0 ];

    // Fill cells values.
    worksheetA.Rows[ 4 ].Cells[ 6 ].Value = "Fruits";
    worksheetA.Rows[ 5 ].Cells[ 6 ].Value = "Strawberry";
    worksheetA.Rows[ 6 ].Cells[ 6 ].Value = "Orange";
    worksheetA.Rows[ 7 ].Cells[ 6 ].Value = "Banana";
    worksheetA.Rows[ 8 ].Cells[ 6 ].Value = "Apple";
    worksheetA.Rows[ 4 ].Cells[ 7 ].Value = "Quantity";
    worksheetA.Rows[ 5 ].Cells[ 7 ].Value = 8;
    worksheetA.Rows[ 6 ].Cells[ 7 ].Value = 2;
    worksheetA.Rows[ 7 ].Cells[ 7 ].Value = 3;
    worksheetA.Rows[ 8 ].Cells[ 7 ].Value = 3;

    // Creates the formatted table from cell (4,6) to cell (8,7), using a medium theme, with the formatted header row displayed.
    worksheetA.Tables.Add( 4, 6, 8, 7, TableStyle.TableStyleMedium20, true );

    // Gets the first table of the Worksheet.
    var firstTable = worksheetA.Tables[ “Table1” ];

    // Sets a TotalRowLabel on the first column of the Table. 
    firstTable.Columns[ 0 ].TotalRowLabel = "TOTAL:";

    doc.Save();
  }