Question : Create an excel sheet programmatically using VB.NET

Hello experts,
I'm developing a desktop application. I have a data table that contains two columns and about 150 row. I wanna use the VB.NET to create an excel file that contains the data in that datatable. So, the problem that I cant loop to add the data in the excel sheet. Thank you all for your expected response in advance.

Answer : Create an excel sheet programmatically using VB.NET

procedure below will take two arguments: excel file path and a datatable with data and will write the data to the specified excel filename

Public Sub WriteToExcelSpreadsheet(ByVal fileName As String, ByVal dt As System.Data.DataTable)
        Dim iCol, iRow, iColVal As Integer
        Dim missing As Object = System.Reflection.Missing.Value
        Dim bNew As Boolean
       
        Dim i As Integer
        ' Open the document that was chosen by the dialog
        Dim aBook As Excel.Workbook
        Try
            ''re-initialize excel app
            ExlApp = New Excel.Application

            If ExlApp Is Nothing Then
                ''throw an exception
                Throw (New Exception("Unable to Start Microsoft Excel"))
            Else
                ''supresses overwrite warnings
                ExlApp.DisplayAlerts = False
               
             
                ''check if file exists
                If File.Exists(fileName) Then
                    aBook = ExlApp.Workbooks.Open(fileName)
                Else
                    aBook = ExlApp.Workbooks.Add(Excel.XlWBATemplate.xlWBATWorksheet)
                End If
                With ExlApp
                    .SheetsInNewWorkbook = 1
                    '.Workbooks.Add()
                    .Worksheets(1).Select()
                    'For displaying the column name in the the excel file.
                    For iCol = 0 To dt.Columns.Count - 1
                        ''clear column name before setting a new value
                        .Cells(1, iCol + 1).Value = ""
                        .Cells(1, iCol + 1).Value = dt.Columns(iCol).ColumnName.ToString
                    Next
                    'For displaying the column value row-by-row in the the excel file.
                    For iRow = 0 To dt.Rows.Count - 1
                        For iColVal = 0 To dt.Columns.Count - 1
                            .Cells(iRow + 2, iColVal + 1).Value = Trim(dt.Rows(iRow).ItemArray(iColVal).ToString)
                        Next
                    Next
                    If File.Exists(fileName) Then
                        .ActiveWorkbook().Save() 'fileName)
                    Else
                        .ActiveWorkbook().SaveAs(fileName, missing, missing, missing, missing, missing, Excel.XlSaveAsAccessMode.xlNoChange, missing, missing, missing, missing, missing)
                    End If
                    .ActiveWorkbook.Close()
                End With
                Console.Write("File exported sucessfully")
            End If
        Catch ex As Runtime.InteropServices.COMException
           
            Console.Write("ERROR: " & ex.Message)
        Catch ex As Exception
           
            Console.Write("ERROR: " & ex.Message)
        Finally
            ExlApp.Quit()
            System.Runtime.InteropServices.Marshal.ReleaseComObject(ExlApp)
            aBook = Nothing
            ExlApp = Nothing
           
        End Try
    End Sub