将Excel,ppt和word转化为html

有些时候可能需要将Excel,ppt和word转化为html在页面上显示。我从网上查到一些代码，记录在这里以供需要的朋友参考

1.将word转化为html显示

//========================================================================
        //  函数名: WordToHtml
        /// <summary>
        /// Word转成Html
        /// </summary>
        /// <param name="wordfilename">word文件名</param>
        /*=======================================================================
         变更记录
         序号　　　更新日期　　开发者　　　变更内容
         0001　　　2008/07/22  张          新建
         =======================================================================*/
        public static string WordToHtml(object wordfilename)
        {
            //在此处放置用户代码以初始化页面
            word.Application word = new word.Application();
            Type wordtype = word.GetType();
            word.Documents docs = word.Documents;
            //打开文件
            Type docstype = docs.GetType();
            word.Document doc = (word.Document)docstype.InvokeMember("open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new object[] { wordfilename, true, true });
            //转换格式，另存为
            Type doctype = doc.GetType();
            string wordsavefilename = wordfilename.ToString();
            string strsavefilename = wordsavefilename.Substring(, wordsavefilename.Length - ) + "html";
            object savefilename = (object)strsavefilename;
            doctype.InvokeMember("saveas", System.Reflection.BindingFlags.InvokeMethod, null, doc, new object[] { savefilename, Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatFilteredHTML });
            doctype.InvokeMember("close", System.Reflection.BindingFlags.InvokeMethod, null, doc, null);
            // 退出 word
            wordtype.InvokeMember("quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);
            return savefilename.ToString();
        }

2.将PPT转化为html显示

//========================================================================
        //  函数名: PPTToHtml
        /// <summary>
        /// PPT转成Html
        /// </summary>
        /// <param name="pptFilename">PPT文件名</param>
        /*=======================================================================
         变更记录
         序号　　　更新日期　　开发者　　　变更内容
         0001　　　2008/07/22  张          新建
         =======================================================================*/
        public string PPTToHtml(string pptFilename)
        {
            //被转换的html文档保存的位置
            string saveFileName = pptFilename + ".html";
            Microsoft.Office.Interop.PowerPoint.Application ppt = new Microsoft.Office.Interop.PowerPoint.Application();
            Microsoft.Office.Core.MsoTriState m1 = new MsoTriState();
            Microsoft.Office.Core.MsoTriState m2 = new MsoTriState();
            Microsoft.Office.Core.MsoTriState m3 = new MsoTriState();
            Microsoft.Office.Interop.PowerPoint.Presentation pp = ppt.Presentations.Open(pptFilename, m1, m2, m3);
            pp.SaveAs(saveFileName, Microsoft.Office.Interop.PowerPoint.PpSaveAsFileType.ppSaveAsHTML, Microsoft.Office.Core.MsoTriState.msoTriStateMixed);
            pp.Close();
            //返回文件名
            return saveFileName;
        }

3.将Excel转化为html显示

//========================================================================
        //  函数名: ExcelToHtml
        /// <summary>
        /// Excel转成Html
        /// </summary>
        /// <param name="excelFileName">Excel文件名</param>
        /*=======================================================================
         变更记录
         序号　　　更新日期　　开发者　　　变更内容
         0001　　　2008/07/22  张          新建
         =======================================================================*/
        public string ExcelToHtml(string excelFileName)
         {
             //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;
             //打开文件，n.FullPath是文件路径
             workbook = repExcel.Application.Workbooks.Open(excelFileName, 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[];
             string filesavefilename = excelFileName.ToString();
             string strsavefilename = filesavefilename.Substring(, filesavefilename.Length - ) + "html";
             object savefilename = (object)strsavefilename;
             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 >  && DateTime.Now.Second - p.StartTime.Second < )
                 {
                     p.Kill();
                 }
             }
 
            return savefilename.ToString();
         }

以上是转换成为html文件的方法，转换成功后会在文件夹下会生对应的图片文件夹，和样式文件，和html文件。其中如果Excel中包含多个sheet时，转化后的html会包含多个tab,如果想每个sheet转化为一个页面,则需要修改代码