C# Excel.Interop 问题

Question

简要细节：

在安装了 Excel 64 位的情况下运行 Office 360​​。 应用程序基于 .NET 4.6 构建，CPU 类型设置为 x64

不工作的代码 - 行标记它失败的地方

public bool CreateInvoice()
    {
        try
        {
            //Write file
            var setting = new Classes.Settings();

            string WritePath = setting.DefaultSavePath + "\\Invoices\\" + InvoiceDetails.CustomerID + "\\" + InvoiceDetails.InvoiceNumber + ".xlsx";
            if (!System.IO.Directory.Exists(setting.DefaultSavePath + "\\Invoices\\" + InvoiceDetails.CustomerID))
                System.IO.Directory.CreateDirectory(setting.DefaultSavePath + "\\Invoices\\" + InvoiceDetails.CustomerID);
            if (System.IO.File.Exists(WritePath))
                System.IO.File.Delete(WritePath);

            System.IO.File.WriteAllBytes(WritePath, AccountManagement.Properties.Resources.Invoice);

            //Prepare Excel
            Microsoft.Office.Interop.Excel.Application xlApp = new Microsoft.Office.Interop.Excel.Application();
            Microsoft.Office.Interop.Excel.Workbooks xlWorkBooks = null;
            Microsoft.Office.Interop.Excel.Workbook xlWorkBook = null;
            Microsoft.Office.Interop.Excel.Sheets xlSheets = null;
            Microsoft.Office.Interop.Excel.Worksheet xlExportSheet = null;

            Classes.GetExcelProcessID getExcelProcessID = new GetExcelProcessID();


            xlWorkBooks = xlApp.Workbooks; //***********FAILS HERE*************
            xlWorkBook = xlWorkBooks.Add(WritePath);
            xlSheets = xlApp.Worksheets;
            xlExportSheet = (Microsoft.Office.Interop.Excel.Worksheet)(xlSheets[1]);


            var cells = xlExportSheet.Cells;

            var Process = Classes.GetExcelProcessID.ExcelProcesID(xlApp);

            try
            {
                xlApp.Visible = false;
                xlApp.DisplayAlerts = false;

                //This is where I make my edits.

                xlWorkBook.SaveAs(WritePath, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing,
                Type.Missing, Type.Missing);
                xlWorkBook.ExportAsFixedFormat(Microsoft.Office.Interop.Excel.XlFixedFormatType.xlTypePDF, setting.DefaultSavePath + "\\Invoices\\" + InvoiceDetails.CustomerID + "\\" + InvoiceDetails.InvoiceNumber + ".pdf");
                InvoiceSavePath = setting.DefaultSavePath + "\\Invoices\\" + InvoiceDetails.CustomerID + "\\" + InvoiceDetails.InvoiceNumber + ".pdf";
                InvoiceDetails.InvoiceSavePath = InvoiceSavePath;

            }
            catch (Exception ex)
            {
                return false;
            }
            finally
            {
                //Ensue all COM objects are closed and realesed or EXCEl will remain open.                             
                xlWorkBook.Close(0, System.Reflection.Missing.Value, System.Reflection.Missing.Value);
                xlWorkBooks.Close();
                //xlApp.Application.Quit();
                xlApp.Quit();

                while (Marshal.FinalReleaseComObject(xlApp) != 0) { }
                while (Marshal.FinalReleaseComObject(xlWorkBooks) != 0) { }
                while (Marshal.FinalReleaseComObject(xlWorkBook) != 0) { }
                while (Marshal.FinalReleaseComObject(xlSheets) != 0) { }
                while (Marshal.FinalReleaseComObject(xlExportSheet) != 0) { }
                while (Marshal.FinalReleaseComObject(cells) != 0) { }

                xlApp = null;
                xlWorkBooks = null;
                xlWorkBook = null;
                xlSheets = null;
                xlExportSheet = null;
                cells = null;

                try
                {
                    Process.Kill();
                }
                catch
                {
                }

                GC.Collect();
                GC.WaitForPendingFinalizers();
                GC.Collect();
                GC.WaitForPendingFinalizers();
            }

        }
        catch (Exception e)
        {
            Console.WriteLine(e.Message);
            return false;
        }

        return true;

    }

这是我不断得到的例外。

无法将类型为“Microsoft.Office.Interop.Excel.ApplicationClass”的 COM 对象转换为接口类型“Microsoft.Office.Interop.Excel._Application”

我最初认为问题是关于我的应用程序可能仍在 x86 上构建，但我有一个与 Word 的互操作功能，该功能运行得非常好 - 这是 64 位。

我试过谷歌，但所有的修复都与 64 位办公室和 32 位应用程序有关。 有小费吗？