关于对word进行操作的几个问题

[w1net]

小弟想作个自动判分系统，针对word或excel操作的，比如word，要对格式操作是否正确进行自动判断。现在想到的方法有两个：
1、将word转换为xml。
2、将word转换为二进制。
通过和标准的word的xml或二进制代码的比较来判断是否完成。
现在有几个问题：
1、word转换为以上两种格式是否是唯一的；
2、.net中对word的转换操作如何进行。
希望各位高手赐教，多谢！～～～

[hawkcai]

SqlConnection con = new SqlConnection("Server=.;uid=sa;pwd=sa;Database=tksqldb_train");
SqlDataAdapter da = new SqlDataAdapter("select st_nr from stid1 where st_id=328", con);
SqlCommandBuilder MyCB = new SqlCommandBuilder(da);
DataSet ds = new DataSet("st_nr");


byte[] MyData= new byte[0];

da.Fill(ds, "stid1");
DataRow myRow;
myRow=ds.Tables["stid1"].Rows[0];

MyData = (byte[])myRow["st_nr"];
int ArraySize = new int();
ArraySize = MyData.GetUpperBound(0);

FileStream fs = new FileStream(@"c:\test1.doc", FileMode.OpenOrCreate, FileAccess.Write);
fs.Write(MyData, 0,ArraySize);
fs.Close();
con.Close();
Microsoft.Office.Interop.Word.Application newApp = new Microsoft.Office.Interop.Word.Application();

// 指定源文件和目标文件
object Source=@"c:\test1.doc";
object Target=@"c:\test1.html";
object Unknown =Type.Missing;
// 打开要转换的Word文件
newApp.Documents.Open(ref Source,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,ref Unknown,ref Unknown);

// 指定文档的类型
object format = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatHTML ;

//改变文档类型
newApp.ActiveDocument.SaveAs(ref Target,ref format,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,
ref Unknown,ref Unknown,ref Unknown,ref Unknown,ref Unknown,ref Unknown,ref Unknown,ref Unknown);

//关闭word实例
newApp.Quit(ref Unknown,ref Unknown,ref Unknown);
MessageBox.Show("转换成html成功！");

[hawkcai]

把那个WDSaveFormat后面的换成xml就保存成xml了