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Visual Basic 2008 Essentials If you are new to Visual Basic programming with version 2008, this is the place to start your questions.
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Old January 21st, 2009, 03:58 AM
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Default Error when create Excel 2007 file in Visual Basic 2008

I wanna create an empty Excel 2007 file thru Visual Basic 2008. I added reference to "Microsoft Excel 12.0 Object Library" from "COM" tab of "Add reference" window.

I wrote following code, but it fails to run - VS 2008 points on "xlBook = xlApp.Workbooks.Add()" line and says - "Old format is used or library has wrong type. (Exception from HRESULT: 0x80028018 (TYPE_E_INVDATAREAD))"

What is the reason?

Code (on usual button):

Option Strict Off
Imports MyExcel = Microsoft.Office.Interop.Excel

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim xlApp As New MyExcel.Application()
Dim xlBook As MyExcel.Workbook
Dim xlSheet As MyExcel.Sheets()

xlBook = xlApp.Workbooks.Add()
xlSheet = xlBook.Worksheets("Sheet1")

xlApp.Visible = True

End Sub

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