C#实现读取Word表格到DataSet

        public DataSet WordAsDataSet(string _filename)
        {
            DataSet ds = new DataSet();
 
            Object Nothing = System.Reflection.Missing.Value;
 
            object filename = _filename;
            //创建一个名为WordApp的组件对象
            DateTime beforetime = DateTime.Now;
            Word.Application WordApp = new Word.Application();
            //创建一个名为WordDoc的文档对象
            WordApp.DisplayAlerts = Word.WdAlertLevel.wdAlertsNone;
 
            Word.Document WordDoc = WordApp.Documents.Open(ref filename, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing, ref Nothing);
 
            WordDoc.SpellingChecked = false;//关闭拼写检查
 
            WordDoc.ShowSpellingErrors = false;//关闭显示拼写错误提示框
 
            DateTime aftertime = DateTime.Now;
//遍历所有的Word里的表格，并写到数据集的TABLES集合里
            foreach (Word.Table wTable in WordDoc.Tables)
            {
                System.Data.DataTable dt = new System.Data.DataTable();
                for (int colPos = 1; colPos <= wTable.Columns.Count; colPos++)
                {
                    DataColumn dc = new DataColumn();
                    dc.ColumnName = "F" + colPos.ToString();
                    dt.Columns.Add(dc);
                }
 
                for (int rowPos = 1; rowPos <= wTable.Rows.Count; rowPos++)
                {
                    DataRow drNew = dt.NewRow();
                    int columnIndex = 0;
                    foreach (Word.Cell cellObj in wTable.Rows[rowPos].Cells)
                    {
                        drNew[columnIndex] = cellObj.Range.Text.Remove(cellObj.Range.Text.Length - 2, 2);//remove \r\a
                        columnIndex++;
                    }
                    dt.Rows.Add(drNew);
                }
                ds.Tables.Add(dt);
            }
 
 
            WordDoc.Close(ref Nothing, ref Nothing, ref Nothing);
            //关闭WordApp组件对象
            WordApp.Quit(ref Nothing, ref Nothing, ref Nothing);
 
            KillProcessByStartTime("WINWORD", beforetime, aftertime);
 
            return ds;
        }

public string KillProcessByStartTime(string processName,DateTime beforetime,DateTime aftertime)
		{
			Process[] ps = Process.GetProcesses();
			foreach (Process p in ps)  
			{
				if(p.ProcessName.ToUpper()!=processName) continue;
				if(p.StartTime > beforetime && p.StartTime < aftertime)
				{
					try
					{
						p.Kill();
					}
					catch(Exception e)
					{
						return e.Message;
					}
				}
			}  
			return "";
		}