ExcelDocument xls2 = new ExcelDocument(2);
                xls2.easy_getSheetAt(0).setSheetName("First tab");
                ExcelTable xlsFirstTable2 = ((ExcelWorksheet)xls2.easy_getSheetAt(0)).easy_getExcelTable();
                xlsFirstTable.easy_getCell("A1").setValue("=1/2");
                xlsFirstTable.easy_getCell("A1").setDataType(EasyXLS.Constants.DataType.AUTOMATIC);
                ((ExcelWorksheet)xls2.easy_getSheetAt(0)).easy_computeFormulas(xls2, true);
                string s2 = xlsFirstTable.easy_getCell("A1").getFormulaResultValue();

using System;
using EasyXLS;
using EasyXLS.Constants;

public class Test
{


   [STAThread]
   static void Main()
   {
      Console.WriteLine("Test\n-----------\n");
       
        ExcelDocument xls = new ExcelDocument(2);
        xls.easy_getSheetAt(0).setSheetName("First tab");
        ExcelTable xlsFirstTable = ((ExcelWorksheet)xls.easy_getSheetAt(0)).easy_getExcelTable();
        xlsFirstTable.easy_getCell("A1").setValue("=12%");
        xlsFirstTable.easy_getCell("A1").setDataType(EasyXLS.Constants.DataType.AUTOMATIC);
        ((ExcelWorksheet)xls.easy_getSheetAt(0)).easy_computeFormulas(xls, true);
        string s2 = xlsFirstTable.easy_getCell("A1").getFormulaResultValue();

        Console.WriteLine("Writing file C:\\Samples\\Test.xls.");
        xls.easy_WriteExcelFile("C:\\Samples\\Test.xls");

        //Confirm generation
        String sError = xls.easy_getError();
        if (sError.Equals(""))
            Console.Write("\nFile successfully created. Press Enter to Exit...");
        else
            Console.Write("\nError encountered: " + sError + "\nPress Enter to Exit...");

        //Dispose memory
        xls.Dispose();

        Console.ReadLine();
    }
}