* @see Cell#CELL_TYPE_FORMULA
* @see Cell#CELL_TYPE_NUMERIC
* @see Cell#CELL_TYPE_STRING
*/
public XSSFCell createCell(int columnIndex, int type) {
CTCell ctCell;
XSSFCell prev = _cells.get(columnIndex);
if(prev != null){
ctCell = prev.getCTCell();
ctCell.set(CTCell.Factory.newInstance());
} else {
ctCell = _row.addNewC();
}
XSSFCell xcell = new XSSFCell(this, ctCell);
xcell.setCellNum(columnIndex);