ADD EXCEL DATA TO Multidimensional ArrayList

I am straggling with multidimensional ArrayLists. I'm reading data from a excel file with 3 rows ID, Date, and INFO. I managed to set the arrayList but with the 3rows data in each index i.e array (1) id1 date1 info1. Can not call info1 individually. I need to create a multy. arraylist where I can call arrayindex(1) item info1.

public class MainActivity extends AppCompatActivity {
String xx;

String show;
int count=0;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);


}
    public void order(View v) {
        try {
            AssetManager am=getAssets();
            InputStream is=am.open("test.xls");
            Workbook wb =Workbook.getWorkbook(is);
            Sheet s=wb.getSheet(0);
            int row =s.getRows();
            int col=s.getColumns();
            xx="";
            for(int i=0; i<row ; i++)
            {
                for (int c=0; c<col; c++)
                {
                    Cell z=s.getCell(c,i);
                    xx=xx+z.getContents();
                    xx=xx+"  ";
                        mainArray();

                }
                xx=xx+"n";
            }

            display(xx);
        }
        catch (Exception e)
        {
        }
    }
public void display(String value)
{
    TextView x=(TextView) findViewById(R.id.display);
    x.setText(value);


}
public void mainArray() {

    ArrayList arrayList = new ArrayList();



    arrayList.add(xx);
    Log.d("log1","Size of al after additions: " + arrayList.size());


    Log.d("log1","Contents of al: " + arrayList);

}

}

How to initiate a multidimensional arraylist(id, date, info) and how on iteration I can append depending on row/line, the data in the proper list.

ArrayList [ list_Id {id1, id2,id3,.............} list_Date {date1, date2,date3.......} list_Info {info1, info2, info3.......} ]