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我有一个应该使用以下代码块解析的 excel 文档：

 var handler = new ExcelHandler(byteStream);


        var currentExcelDocument = handler.CurrentDocument;
        //now if the document is null
        if (currentExcelDocument == null)
            {
            throw new Exception("Excel file handle missing");
            }
        var wokrbookpart = currentExcelDocument.WorkbookPart;
        //get a list of all the sheets
        string text =  String.Empty;

        var sheets = wokrbookpart.Workbook.Descendants<Sheet>().ToList();
        foreach (var sh in sheets)
            {
            //now we have the sheets but the data must be in the first sheet
            var themainsheet = sh;
            if (themainsheet == null)
                throw new ArgumentException("sheetName");
            //now we need a reference to the worksheetpart
            var worksheetpart = (WorksheetPart)wokrbookpart.GetPartById(themainsheet.Id);

            SheetData data = worksheetpart.Worksheet.Elements<SheetData>().First();

            //now we have a reference to the cells that contain data we start passing the data

            foreach (Row r in data.Elements<Row>())
                {
                //we get the cells in the row
                var cells = r.Elements<Cell>().ToList();
                foreach (var i in cells)
                    {
                    text += i.CellValue.InnerText;
                    }
                }
            }

        return text;

excel文件通过asp.net中的fileupload控件上传，流被传递到上面的代码块中。

一切都很好，但是当我在标签中显示结果文本时，我看到读取单元格值的结果显示为一系列数字，即使我确信数据中没有数字

请问我做错了什么？

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