public void setData(int row, int col, String data) {
      if (row < 0
         || col < 0
         || row > (getRowsCount() - 1)
         || col > (getColsCount() - 1)) {
         throw new IndexOutOfBoundsException();
      }
      Vector theRow = (Vector)m_fileContent.get(row);
      theRow.setElementAt(data, col);
   }