导入COM库：Microsoft word 11.0 Object Library
引用里面就增加了：

  原http://support.microsoft.com/kb/316384/zh-cn#top

创建新Word
object oMissing = System.Reflection.Missing.Value;
Word._Application oWord;
Word._Document oDoc;
oWord =new Word.Application();
oWord.Visible =true;
oDoc = oWord.Documents.Add(ref oMissing,ref oMissing,
ref oMissing,ref oMissing);

打开文档:
object oMissing = System.Reflection.Missing.Value;
Word._Application oWord;
Word._Document oDoc;
oWord =new Word.Application();
oWord.Visible =true;
object fileName = @"E:\CCCXCXX\TestDoc.doc";
oDoc = oWord.Documents.Open(ref fileName,
ref oMissing,ref oMissing, ref oMissing, ref oMissing, ref oMissing,
ref oMissing,ref oMissing, ref oMissing, ref oMissing, ref oMissing,
ref oMissing,ref oMissing, ref oMissing, ref oMissing, ref oMissing);

导入模板
object oMissing = System.Reflection.Missing.Value;
Word._Application oWord;
Word._Document oDoc;
oWord =new Word.Application();
oWord.Visible =true;
object fileName = @"E:\XXXCCX\Test.doc";
oDoc = oWord.Documents.Add(ref fileName,ref oMissing,
ref oMissing,ref oMissing);


.添加新表
object oMissing = System.Reflection.Missing.Value;
Word._Application oWord;
Word._Document oDoc;
oWord =new Word.Application();
oWord.Visible =true;
oDoc = oWord.Documents.Add(ref oMissing,ref oMissing,
ref oMissing,ref oMissing);

object start = 0;
object end = 0;
Word.Range tableLocation = oDoc.Range(ref start,ref end);
oDoc.Tables.Add(tableLocation, 3, 4,ref oMissing,ref oMissing);

.表插入行
object oMissing = System.Reflection.Missing.Value;
Word._Application oWord;
Word._Document oDoc;
oWord =new Word.Application();
oWord.Visible =true;
oDoc = oWord.Documents.Add(ref oMissing,ref oMissing,
ref oMissing,ref oMissing);

object start = 0;
object end = 0;
Word.Range tableLocation = oDoc.Range(ref start,ref end);
oDoc.Tables.Add(tableLocation, 3, 4,ref oMissing,ref oMissing);

Word.Table newTable = oDoc.Tables[1];
object beforeRow = newTable.Rows[1];
newTable.Rows.Add(ref beforeRow);

.单元格合并
object oMissing = System.Reflection.Missing.Value;
Word._Application oWord;
Word._Document oDoc;
oWord =new Word.Application();
oWord.Visible =true;
oDoc = oWord.Documents.Add(ref oMissing,ref oMissing,
ref oMissing,ref oMissing);

object start = 0;
object end = 0;
Word.Range tableLocation = oDoc.Range(ref start,ref end);
oDoc.Tables.Add(tableLocation, 3, 4,ref oMissing,ref oMissing);

Word.Table newTable = oDoc.Tables[1];
object beforeRow = newTable.Rows[1];
newTable.Rows.Add(ref beforeRow);

Word.Cell cell = newTable.Cell(1, 1);
cell.Merge(newTable.Cell(1, 2));

.单元格分离
object oMissing = System.Reflection.Missing.Value;
Word._Application oWord;
Word._Document oDoc;
oWord =new Word.Application();
oWord.Visible =true;
oDoc = oWord.Documents.Add(ref oMissing,ref oMissing,
ref oMissing,ref oMissing);

object start = 0