You can select the specific row or column from excel using following code :
File f = new File("/Users/Raj/Desktop/datafile.xls"); //Create File Object to locate file on system
Workbook w = Workbook.getWorkbook(f); //Activate the Workbook
Sheet s = w.getSheet(0); //Activate Sheet (either by name or id). Id starts with 0
int rows= s.getRows() ; //Get Row Count
int columns = s.getColumns();
//sheet's columns and rows are started with (column = 0, row = 0)
int firstColumn = 0;
int secondColumn = 1;
int secondRow = 1;
int firstColumnData = Integer.parseInt(s.getCell(firstColumn, secondRow).getContents());
int secondColumnData = Integer.parseInt(s.getCell(secondColumn, secondRow).getContents());
int desiredData = firstColumnData + secondColumnData;
System.out.println("First Column: "+firstColumnData + " Second Column Data: "+secondColumnData + " Sum Data: "+desiredData);
Hope it will help you.