.net 将excel转成html文件

最近在做一个打印预览功能，但是开始没有头绪后来用excel做了一个模板，然后根据excel模板来生成新的excel并将其存储为html，可以通过http请求在浏览器中读取，并且打印，其他的不多说。方法如下：

首先需要安装Office，然后引用Microsoft.Office.Interop.Excel.dll.

 public void ExcelToHtmlFiled(string excelFileName, string rHtmlFilePath)
        {
            //实例化Excel
            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;
            repExcel.Visible = false;
            repExcel.DisplayAlerts = false;

            object o = Missing.Value;
            //打开文件，n.FullPath是文件路径
            workbook = repExcel.Application.Workbooks.Open(excelFileName, o, o, o, o, o, o, o, o, o, o, o, o, o, o);
            worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[1];

            object ofmt = Microsoft.Office.Interop.Excel.XlFileFormat.xlHtml;
            //进行另存为操作 

            workbook.SaveAs(rHtmlFilePath, ofmt, false, false, false, false, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlExclusive, false, false, false, false, false);
            object osave = false;
            //逐步关闭所有使用的对象
            workbook.Close(osave, o, o);
            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.Minute - p.StartTime.Minute > 1)
                {
                    p.Kill();
                }
            }
            Thread.Sleep(1000);
        }

嘿嘿~~，以上就是将excel转成html的方法。同时也可以通过该dll中的对象对excel进行写入文字和图片等功能。