Calling Excel 2007 to Visual Basic 2005 window form

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I want to call Excell to VB. keep on giving a error when getting the excel file. Is it because i'm calling the Excel 2007 application. when I calling Excel 2003 it works

VB

Dim xlApp As New Excel.Application
        Dim xcFileInfo As IO.FileInfo
        Dim xcFileDialog As New OpenFileDialog()
        Dim strFileName As String
        xcFileDialog.Filter = "Excel Spreadsheet Files!|*.xls"
        xcFileDialog.Title = "Select estimate in excel spreadsheet file!"
        If xcFileDialog.ShowDialog = Windows.Forms.DialogResult.OK Then
            xcFileInfo = New IO.FileInfo(xcFileDialog.FileName)
            xlApp = CreateObject("Excel.Application")
            strFileName = xcFileDialog.FileName
            'MessageBox.Show(strFileName)
            xlApp.Workbooks.Open(strFileName)
        End If
        xlApp.Visible = True
    End Sub

Posted 24-Aug-11 4:22am

Onke Nkwentsha

Updated 24-Aug-11 18:40pm

walterhevedeich

v2

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ChandraRam 24-Aug-11 10:55am

Why are you calling CreateObject when the object type is already known? In other words, why use late binding, when you have already typed the variable? And, nowhere in this snippet is the code bound to a version of Excel (except in the dialog filter, when you are not allowing .xlsx files).

Onke Nkwentsha 25-Aug-11 4:05am

I was thought that way. I will try what you suggest and see how it goes. Thanks!

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koolprasad2003 · Answer 1 · 2011-08-24T18:52:00

Why you are use CreateObject("Excel.Application"). you have already declear Dim xlApp As New Excel.Application excel application object.

code to open excel file same code will run for 2003/2007

VB

Dim objExcel As Microsoft.Office.Interop.Excel.Application
Dim objWB As Microsoft.Office.Interop.Excel.Workbook
Try
   objExcel = New Microsoft.Office.Interop.Excel.Application
   objWB = excel.Workbooks.Open("c:\\test.xls")
   objExcel.Visible = True
   objWB.Activate()
Catch ex As COMException
   MessageBox.Show("Error accessing Excel: " + ex.ToString())
End Try