//Instantiating a Workbook object
Workbook workbook = new Workbook(dataPath + "AsposeDataInput.xls");

//Accessing the first worksheet in the Excel file
Worksheet worksheet = workbook.getWorksheets().get(0);

//Get the cells collection in the sheet
Cells cells = worksheet.getCells();

//Obtain the DataSorter object in the workbook
DataSorter sorter = workbook.getDataSorter();

//Set the first order
sorter.setOrder1(SortOrder.ASCENDING);

//Define the first key.
sorter.setKey1(0);

//Set the second order
sorter.setOrder2(SortOrder.ASCENDING);

//Define the second key
sorter.setKey2(1);

//Create a cells area (range).
CellArea ca = new CellArea();

//Specify the start row index.
ca.StartRow = 1;
//Specify the start column index.
ca.StartColumn = 0;
//Specify the last row index.
ca.EndRow = 9;
//Specify the last column index.
ca.EndColumn = 2;

//Sort data in the specified data range (A2:C10)
sorter.sort(cells, ca);

//Saving the excel file
workbook.save(dataPath + "AsposeSortedData_Out.xls");