private List<string> GetDoc(string Path)
        {
            if (Path == "")
                return null;    //文件路徑為空
            List<string> Result = new List<string>();    //結(jié)果容器
 
            FileStream stream = new FileStream(Path, FileMode.Open);    //打開流
            XWPFDocument docx = new XWPFDocument(stream);
            var list = new List<XWPFTableCell>();
 
            //循環(huán)遍歷表格內(nèi)容
            foreach (var row in docx.Tables[0].Rows)
            {
                foreach (var cell in row.GetTableCells())
                {
                    if (!list.Contains(cell))
                    {
                        list.Add(cell);
                        Result.Add(cell.GetText());
                    }
                }
            }
            stream.Close();
            return Result;    //關(guān)閉文件流（很關(guān)鍵，否則會導(dǎo)致下一個文件無法大開）
 
        }

        private List<string> GetDocX(string Path)
        {
            if (Path == "")
                return null;    //文件路徑為空
            List<string> Result = new List<string>();
 
            Spire.Doc.Document doc = new Spire.Doc.Document();
            doc.LoadFromFile(Path);
 
            TextBox textbox = doc.TextBoxes[0];
            Spire.Doc.Table table = textbox.Body.Tables[0] as Spire.Doc.Table;
 
            foreach (TableRow row in table.Rows)
            {
                foreach (TableCell cell in row.Cells)
                {
                    foreach (Paragraph paragraph in cell.Paragraphs)
                    {
                        Result.Add(paragraph.Text);
                    }
                }
            }
            return Result;
        }

        private string ChangeToDocx(string Path)
        {
            if (Path == "")
                return "";    //文件路徑為空
            List<string> Result = new List<string>();
 
            Spire.Doc.Document doc = new Spire.Doc.Document();
            doc.LoadFromFile(Path);    //打開文件
            Path.Replace(".doc", "docx");    //替換后綴
            doc.SaveToFile(Path, FileFormat.Docx);    //保存為.doc
            return Path;
        }

if (Path.Contains(".doc"))
{
    string newPath = ChangeToDocx(Path);
    result = GetDoc(newPath);
}
result = GetDoc(Path);