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java -jar jxl.jar -xml test.xls
java -jar jxl.jar -cvs test.xls
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//ͨ¹ýWorkbookµÄ¾²Ì¬·½·¨getWorkbookÑ¡È¡ExcelÎļþ
Workbook workbook = Workbook.getWorkbook(new File("myfile.xls"));
//ͨ¹ýWorkbookµÄgetSheet·½·¨Ñ¡ÔñµÚÒ»¸ö¹¤×÷²¾£¨´Ó0¿ªÊ¼£©
Sheet sheet = workbook.getSheet(0);
//ͨ¹ýSheet·½·¨µÄgetCell·½·¨Ñ¡ÔñλÖÃΪC2µÄµ¥Ôª¸ñ£¨Á½¸ö²ÎÊý¶¼´Ó0¿ªÊ¼£©
Cell c2 = sheet.getCell(2,1);
//ͨ¹ýCellµÄgetContents·½·¨°Ñµ¥Ôª¸ñÖеÄÐÅÏ¢ÒÔ×Ö·ûµÄÐÎʽ¶ÁÈ¡³öÀ´
String stringc2 = c2.getContents();
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if (c2.getType() == CellType.NUMBER)
{
  NumberCell nc = (NumberCell) c2;
  numberb2 = nc.getValue();
}
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workbook.close();
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