通过JExcelAPI在Android上编辑Excel文件

Question

我将通过assets将我的应用程序assetManager目录中的Excel文件复制到外部存储中的特定目录。

然后我想通过JExcelAPI编辑此Excel文件。我使用以下代码执行此操作：

 try {
        Workbook wb = Workbook.getWorkbook(new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/Jeeb/save/template.xlsx"));
        WritableWorkbook copy = Workbook.createWorkbook(new File(Environment.getExternalStorageDirectory().getAbsolutePath()+"/Jeeb/save/template.xlsx"),wb);

        WritableSheet copySheet = copy.getSheet(0);
        for(int i = 0 ; i<10 ; i++){
            Label label1 = new Label(0,i,"result"+i);
            copySheet.addCell(label1);
        }

        copy.write();
        copy.close();

    }catch (Exception e){

        e.printStackTrace();
    }

但是不幸的是，它没有对此Excel文件进​​行任何更改

logcat显示此消息：

10-06 12:57:53.009 25234-25234/com.niyazdel.app.jeeb W/System.err: jxl.read.biff.BiffException: Unable to recognize OLE stream 10-06 12:57:53.019 25234-25234/com.niyazdel.app.jeeb W/System.err: at jxl.read.biff.CompoundFile.<init>(CompoundFile.java:116) 10-06 12:57:53.019 25234-25234/com.niyazdel.app.jeeb W/System.err: at jxl.read.biff.File.<init>(File.java:127) 10-06 12:57:53.019 25234-25234/com.niyazdel.app.jeeb W/System.err: at jxl.Workbook.getWorkbook(Workbook.java:268) 10-06 12:57:53.019 25234-25234/com.niyazdel.app.jeeb W/System.err: at jxl.Workbook.getWorkbook(Workbook.java:253)

如何解决这个问题？