Word、Exce、PPT转html文档

        /// <summary>
        ///  word 转换为html
        /// </summary>
        /// <param name="path">要转换的文档的路径</param>
        /// <param name="savePath">转换成的html的保存路径</param>
        /// <param name="wordFileName">转换后html文件的名字</param>
        public static void WordToHtml(string path, string savePath, string wordFileName)
        {
            Word.ApplicationClass word = new Word.ApplicationClass();
            Type wordType = word.GetType();
            Word.Documents docs = word.Documents;
            Type docsType = docs.GetType();
            Word.Document doc = (Word.Document)docsType.InvokeMember("Open", System.Reflection.BindingFlags.InvokeMethod, null, docs, new Object[] { (object)path, true, true });
            Type docType = doc.GetType();
            string strSaveFileName = savePath + wordFileName + ".html";
            object saveFileName = (object)strSaveFileName;
            docType.InvokeMember("SaveAs", System.Reflection.BindingFlags.InvokeMethod, null, doc, new object[] { saveFileName, Word.WdSaveFormat.wdFormatFilteredHTML });
            docType.InvokeMember("Close", System.Reflection.BindingFlags.InvokeMethod, null, doc, null);
            wordType.InvokeMember("Quit", System.Reflection.BindingFlags.InvokeMethod, null, word, null);
        }

        /// <summary>
        /// excel 转换为html
        /// </summary>
        /// <param name="path">要转换的文档的路径</param>
        /// <param name="savePath">转换成的html的保存路径</param>
        /// <param name="wordFileName">转换后html文件的名字</param>
        public static void ExcelToHtml(string path, string savePath, string wordFileName)
        {
            string str = string.Empty;
            Excel.Application repExcel = new Excel.Application();
            Excel.Workbook workbook = null;
            Excel.Worksheet worksheet = null;
            workbook = repExcel.Application.Workbooks.Open(path, 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 = (Excel.Worksheet)workbook.Worksheets[1];
            object htmlFile = savePath + wordFileName + ".html";
            object ofmt = Excel.XlFileFormat.xlHtml;
            workbook.SaveAs(htmlFile, ofmt, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Excel.XlSaveAsAccessMode.xlNoChange, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing);
            object osave = false;
            workbook.Close(osave, Type.Missing, Type.Missing);
            repExcel.Quit();
        }

        /// <summary>
        /// ppt转换为html
        /// </summary>
        /// <param name="path">要转换的文档的路径</param>
        /// <param name="savePath">转换成的html的保存路径</param>
        /// <param name="wordFileName">转换后html文件的名字</param>
        public static void PPTToHtml(string path, string savePath, string wordFileName)
        {
            PowerPoint.Application ppApp = new PowerPoint.Application();
            string strSourceFile = path;
            string strDestinationFile = savePath + wordFileName + ".html";
            PowerPoint.Presentation prsPres = ppApp.Presentations.Open(strSourceFile, Microsoft.Office.Core.MsoTriState.msoTrue, Microsoft.Office.Core.MsoTriState.msoFalse, Microsoft.Office.Core.MsoTriState.msoFalse);
            prsPres.SaveAs(strDestinationFile, PowerPoint.PpSaveAsFileType.ppSaveAsHTML, MsoTriState.msoTrue);
            prsPres.Close();
            ppApp.Quit();
        }

需要添加下列com引用：

  

进行using简化：

using Word = Microsoft.Office.Interop.Word;
using Excel = Microsoft.Office.Interop.Excel;
using PowerPoint = Microsoft.Office.Interop.PowerPoint;