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How to display very long numbers in a cell without rounding off in C#, VB.NET?

2 mins read

This article explains how to display very long numbers without rounding off in XlsIO.

Microsoft Excel displays all digits of a numeric value in the cell if its digit count does not exceed the maximum count, with respect to system resolution. Otherwise it is displayed in exponential format and displayed. This is same in XlsIO and is not possible to retrieve the entire cell value as entered, through DisplayText. Therefore, the cell’s number format should be set to text to retrieve the number as entered.

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To know more about applying number formats, please refer the documentation.

The following C#/VB complete code snippet explains how to display very long numbers without rounding off using XlsIO.


using Syncfusion.XlsIO;
using System.IO;
namespace LongNumber_WithoutRounding
    class Program
        static void Main(string[] args)
            using (ExcelEngine excelEngine = new ExcelEngine())
                IApplication application = excelEngine.Excel;
                application.DefaultVersion = ExcelVersion.Excel2013;
     //Create a new workbook
     IWorkbook workbook = application.Workbooks.Create(1);
     //Accessing first worksheet in the workbook
     IWorksheet worksheet = workbook.Worksheets[0];
     //Entering a long number with text number format
     worksheet.Range["A1"].NumberFormat = "@";
     worksheet.Range["A1"].Value = "1234567890987654321";
     //Autofit column to view view entire cell contents
     //Saving the workbook as stream
     Stream outputStream = File.Create("Output.xlsx");


Imports System.IO
Imports Syncfusion.XlsIO
Namespace LongNumber_WithoutRounding
  Class Program
      Private Shared Sub Main(ByVal args() As String)
 Using excelEngine As ExcelEngine = New ExcelEngine
     Dim application As IApplication = excelEngine.Excel
     application.DefaultVersion = ExcelVersion.Excel2013
     'Create a new workbook
     Dim workbook As IWorkbook = application.Workbooks.Create(1)
     'Accessing first worksheet in the workbook
     Dim worksheet As IWorksheet = workbook.Worksheets(0)
     'Entering a long number with text number format
     worksheet.Range("A1").NumberFormat = "@"
     worksheet.Range("A1").Value = "1234567890987654321"
     'Autofit column to view view entire cell contents
     'Saving the workbook as stream
     Dim outputStream As Stream = File.Create("Output.xlsx")
 End Using
      End Sub
  End Class
End Namespace


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