POI delete row

removeRow() only removes data, not rows

use

sheet.shiftRows(rowIndex+1,lastRowNum,-1);

 

/**
 * Remove a row by its index
 * @param sheet a Excel sheet
 * @param rowIndex a 0 based index of removing row
 */
public static void removeRow(HSSFSheet sheet, int rowIndex) {
    int lastRowNum=sheet.getLastRowNum();
    if(rowIndex>=0&&rowIndex<lastRowNum){
        sheet.shiftRows(rowIndex+1,lastRowNum, -1);
    }
    if(rowIndex==lastRowNum){
        HSSFRow removingRow=sheet.getRow(rowIndex);
        if(removingRow!=null){
            sheet.removeRow(removingRow);
        }
    }
}

 
Reference: http://stackoverflow.com/questions/1834971/removing-a-row-from-an-excel-sheet-with-apache-poi-hssf