如何解决 JXL 错误： jxl.read.biff.BiffException： 无法识别 OLE 流

我正在尝试从我的.csv文件中获取单元格数据，但它得到错误：jxl.read.biff.BiffException：无法识别OLE流

我不明白如何解决这个问题，请给我一些解决方案，这个代码是针对jxl api的，是不是api支持.csv？

代码供参考：

public void read() throws IOException, BiffException  {

    File inputWorkbook = new File(inputFile);

    try
    {
        w = Workbook.getWorkbook(inputWorkbook.getAbsoluteFile());
        // Get the first sheet
        Sheet sheet = w.getSheet(0);
        // Loop over first 10 column and lines

        for (row = 1; row < sheet.getRows(); row++) 
        {
            ReadExcelLotSizeEntity readExcelLotSizeEntity =new ReadExcelLotSizeEntity();

                cell = sheet.getCell(1,row);
                type= cell.getType();
                if (cell.getType() == CellType.LABEL)
                {

                    symbol=cell.getContents();
                    System.out.println(":::::::::::::::::"+symbol);
                    readExcelLotSizeEntity.setSymbol(symbol);
                }   

                int col=2;
                cell = sheet.getCell(col,row);
                while(!cell.getContents().equals("")||cell.getContents()!=null)
                {
                    System.out.println("||||||||||||||||"+cell.getContents());
                    cell=sheet.getCell(col,row);
                    col++;
                }
                lotSize= new Double(cell.getContents());
                readExcelLotSizeEntity.setLotSize(lotSize);
                readExcelLotSizeEntity.setCreateUserId(1L);
                readExcelLotSizeEntity.setCreateDtTm(new Date());
                readExcelLotSizeHome.persist(readExcelLotSizeEntity);
            }

    } catch (BiffException e) {
        e.printStackTrace();
    }

}