private static void removeMultipleCells(Workbook newwb, int rowBegin, int columnNumber){
            int rowIndex = rowBegin;
            try{
                while(newwb.getSheetAt(0).getRow(rowIndex).getCell(columnNumber)!= null){
                    newwb.getSheetAt(0).getRow(rowIndex).removeCell(
                            newwb.getSheetAt(0).getRow(rowIndex).getCell(columnNumber));
                    rowIndex++;
                }
            }catch(NullPointerException ignored){}
        }