主要功能为根据word模板生成word报表文档,注意引用Interop.Word.dll;
首先要生成word程序对象
Word.Application app = new Word.Application();
根据模板文件生成新文件框架
File.Copy(TemplateFile, FileName);
生成documnet对象
ord.Document doc = new Word.Document();
        打开新文挡
        doc = app.Documents.Open(ref Obj_FileName, ref missing, ref ReadOnly, ref missing,
            ref missing, ref missing, ref missing, ref missing,
            ref missing, ref missing, ref missing, ref Visible,
            ref missing, ref missing, ref missing,
            ref missing);
        doc.Activate();
将光标定位到新的书签(模板中定义了书签的位置),下面代码为在光标位置输出一行,然后回车
        //光标转到书签
        for (int bookIndex = 0; bookIndex < 5; bookIndex++)
        {
            object BookMarkName = "BookMark" + bookIndex.ToString();
            object what = Word.WdGoToItem.wdGoToBookmark;
            doc.ActiveWindow.Selection.GoTo(ref what, ref missing, ref missing, ref BookMarkName);
            doc.ActiveWindow.Selection.TypeText("文明单位" + bookIndex.ToString() + "zaddd    25      大学");
            doc.ActiveWindow.Selection.TypeParagraph();
        }
输出完毕后,最后关闭doc对象
        object IsSave = true;
        doc.Close(ref IsSave, ref missing, ref missing);

完整事例代码如下:
using System;
using System.IO;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;

public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        Word.Application app = new Word.Application();
        //模板文件
        string TemplateFile = @"D:\Mywork\ExcelReportsServer\ReportServer\Tempalte\SmallList.doc";
        //生成的具有模板样式的新文件
        string FileName = @"C:\Documents and Settings\Administrator\桌面\" + DateTime.Now.ToString("yyyyMMddHHmmssfffffff")+".doc";
        //模板文件拷贝到新文件
        File.Copy(TemplateFile, FileName);
        Word.Document doc = new Word.Document();
        object Obj_FileName = FileName;
        object Visible = false;
        object ReadOnly = false;
        object missing = System.Reflection.Missing.Value;
        //打开文件
        doc = app.Documents.Open(ref Obj_FileName, ref missing, ref ReadOnly, ref missing,
            ref missing, ref missing, ref missing, ref missing,
            ref missing, ref missing, ref missing, ref Visible,
            ref missing, ref missing, ref missing,
            ref missing);
        doc.Activate();

        //光标转到书签
        for (int bookIndex = 0; bookIndex < 5; bookIndex++)
        {
            object BookMarkName = "BookMark" + bookIndex.ToString();
            object what = Word.WdGoToItem.wdGoToBookmark;
            doc.ActiveWindow.Selection.GoTo(ref what, ref missing, ref missing, ref BookMarkName);
            doc.ActiveWindow.Selection.TypeText("文明单位" + bookIndex.ToString() + "zaddd    25      大学");
            doc.ActiveWindow.Selection.TypeParagraph();
        }
        object IsSave = true;
        doc.Close(ref IsSave, ref missing, ref missing);

        Response.Write("<script language='javascript'>alert('生成模板成功!')</script>");
    }
}

附:
光标到 书签Title 的位置
object BookMarkName="Title";
object what =Word.WdGoToItem.wdGoToBookmark;
Doc.ActiveWindow.Selection.GoTo(ref what ,ref missing,ref missing,ref BookMarkName);                       
在当前的光标写文本
Doc.ActiveWindow.Selection.TypeText("变更通知");

当前的光标换行
Doc.ActiveWindow.Selection.TypeParagraph();

当前的光标设置格式（举例 对齐方式）                                                              Doc.ActiveWindow.Selection.ParagraphFormat.Alignment=Word.WdParagraphAlignment.wdAlignParagraphRight;

注意 ParagraphFormat 是设置字体的格式的地方