EXCEL转html

　　　　　　　　/*

fullname:EXCEL全路径

*/

　　　　　　　Microsoft.Office.Interop.Excel.Application repExcel = new Microsoft.Office.Interop.Excel.Application();
            Microsoft.Office.Interop.Excel.Workbook workbook = null;
            Microsoft.Office.Interop.Excel.Worksheet worksheet = null;

            //打开文件，n.FullPath是文件路径  
            workbook = repExcel.Application.Workbooks.Open(fullname, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];
            if (!Directory.Exists(System.IO.Path.Combine(System.IO.Directory.GetParent(fullname).FullName,"html")))
            {
                // 创建up文件夹 
                Directory.CreateDirectory(System.IO.Path.Combine(System.IO.Directory.GetParent(fullname).FullName,"html"));
            }
            string ConfigPath = System.IO.Path.Combine(System.IO.Directory.GetParent(fullname).FullName, "html","a.html"); 
            object savefilename = (object)ConfigPath;

            object ofmt = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
            //进行另存为操作    
            workbook.SaveAs(savefilename, ofmt, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            object osave = false;
            //逐步关闭所有使用的对象  
            workbook.Close(osave, Type.Missing, Type.Missing);
            repExcel.Quit();
            System.Runtime.InteropServices.Marshal.ReleaseComObject(worksheet);
            worksheet = null;
            //垃圾回收  
            GC.Collect();
            System.Runtime.InteropServices.Marshal.ReleaseComObject(workbook);
            workbook = null;
            GC.Collect();
            System.Runtime.InteropServices.Marshal.ReleaseComObject(repExcel.Application.Workbooks);
            GC.Collect();
            System.Runtime.InteropServices.Marshal.ReleaseComObject(repExcel);
            repExcel = null;
            GC.Collect();
            //依据时间杀灭进程  
            System.Diagnostics.Process[] process = System.Diagnostics.Process.GetProcessesByName("EXCEL");
            foreach (System.Diagnostics.Process p in process)
            {
                if (DateTime.Now.Second - p.StartTime.Second > 0 && DateTime.Now.Second - p.StartTime.Second < 5)
                {
                    p.Kill();
                }
            }