excel.dll 导出 excel 时,异常来自 HRESULT:0x800A03EC

    private void ToExcel(DataSet ds)

    {

        object missing = Missing.Value;

        string savePath = Server.MapPath("./") + @"ExcelFile/";

        DirectoryInfo upDir = new DirectoryInfo(savePath);

        if (!upDir.Exists)

        {

            upDir.Create();

        }

        if (ds.Tables[0].Rows.Count != 0)

        {

            savePath += ds.Tables[0].Rows[0]["员工姓名"].ToString().Trim();

            Excel.Application excel = new Excel.ApplicationClass();

            excel.Application.Workbooks.Add(true);   



            //Sheets xslSheets = Excel.Worksheets;

            //xslSheets.get

            for (int i = 1; i <= ds.Tables[0].Rows.Count; i++)

            {

                for (int j = 0; j < ds.Tables[0].Columns.Count; j++)

                {

                    excel.Cells[i,j] = ds.Tables[0].Rows[i][j].ToString();

                }

            }



            excel.Visible = false;

            excel.ActiveWorkbook.SaveCopyAs(savePath);

            excel.Workbooks.Close();

            excel.Application.Quit();

            excel.Quit();

        }

    }