主题：SaveToPdf 错误

3、如果1、2都无法修复，那就安装下面这个 http://dl.pconline.com.cn/html_2/1/82/id=8870&pn=0.html

• Install the Multilingual User Interface Pack for your version of Office.
• Execute the Excel method or property by using InvokeMember so that you can specify the CultureInfo for the call. For example, the following code illustrates how you can invoke the Workbooks object Add method with "en-US" as the CultureInfo:

  Dim oApp As New Excel.Application()
  oApp.Visible = True
  oApp.UserControl = True
  Dim oBooks As Object = oApp.Workbooks
  Dim ci As System.Globalization.CultureInfo = New System.Globalization.CultureInfo("en-US")
  oBooks.GetType().InvokeMember("Add", Reflection.BindingFlags.InvokeMethod, Nothing, oBooks, Nothing, ci)
  

• Or, set the CultureInfo prior to calling the Excel method. For example:

  Dim oApp As New Excel.Application()
  oApp.Visible = True
  oApp.UserControl = True
  Dim oldCI As System.Globalization.CultureInfo = _
      System.Threading.Thread.CurrentThread.CurrentCulture
  System.Threading.Thread.CurrentThread.CurrentCulture = _
      New System.Globalization.CultureInfo("en-US")
  oApp.Workbooks.Add()
  System.Threading.Thread.CurrentThread.CurrentCulture = oldCI

• Create a 1033 directory under Microsoft Office\Office11. Then, copy excel.exe to the 1033 directory, and rename it as xllex.dll. 
  
  For more information, click the following link:
  http://blogs.msdn.com/eric_carter/archive/2005/06/15/429515.aspx

如果你之前安装过wps，请重新安装一下wps；

如果所有确实无法修复，那就安装下面这个测试 http://dl.pconline.com.cn/html_2/1/82/id=8870&pn=0.html