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试图让一个基本的 VB.NET Excel 文件创建应用程序正常工作，从这里的一些示例代码开始，我得到了这个代码的错误消息：

Private Sub ButtonCreateExcelFile_Click( sender As Object,  e As EventArgs) Handles ButtonCreateExcelFile.Click
    Dim xlApp As New Excel.Application
    Dim xlWorkBook As Excel.Workbook
    Dim xlWorkSheet As Excel.Worksheet
    Dim misValue As Object = System.Reflection.Missing.Value

    xlWorkBook = xlApp.Workbooks.Add(misValue)
    xlWorkBook.Application.Visible = True
    xlWorkBook.Application.ScreenUpdating = False
    xlWorkSheet = xlWorkBook.Sheets("sheet1")
    'xlWorkSheet.SaveAs("C:\vbexcel.xlsx")
    xlWorkSheet.SaveAs("C:\\misc\\vbexcel.xls")
    . . .

我首先尝试过这个：

xlWorkSheet.SaveAs("C:\vbexcel.xlsx")

（未能逃脱回击），并且这个（“vbexcel.xlsx”）在某种程度上被误认为“52587100”，如您在此处看到的：

System.Runtime.InteropServices.COMException was unhandled
  ErrorCode=-2146827284
  HelpLink=C:\Program Files (x86)\Microsoft Office\Office12\1033\XLMAIN11.CHM
  HResult=-2146827284
  Message=Microsoft Office Excel cannot access the file 'C:\52587100'. There are several possible reasons:

• The file name or path does not exist.
• The file is being used by another program.
• The workbook you are trying to save has the same name as a currently open workbook.
  Source=Microsoft Office Excel. . .

通过向路径添加子文件夹和转义字符，如下所示：

xlWorkSheet.SaveAs("C:\\misc\\vbexcel.xlsx")

...我遇到了类似的错误，但这次它只是说它无法访问该文件（没有声称文件名被命名为“52587100”）：

System.Runtime.InteropServices.COMException was unhandled
  ErrorCode=-2146827284
  HelpLink=C:\Program Files (x86)\Microsoft Office\Office12\1033\XLMAIN11.CHM
  HResult=-2146827284
  Message=The file could not be accessed. Try one of the following:

这段代码有什么问题，导致文件无法访问？

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