@Override
public Object fromString(String cell, ConverterHandler converterHandler, Type targetType) {
    if (Strings.isNullOrEmpty(cell)) {
        return null;
    }
    long value;
    char c1 = cell.charAt(1);
    if (c1 == 'x' || c1 == 'X') {
        value = Long.decode(cell);
    } else {
        value = Long.valueOf(cell.toString()).longValue();
    }
    if (value < Integer.MIN_VALUE || value > Integer.MAX_VALUE) {
        throw new NumberFormatException("For input string: \"" + cell + '"');
    }
    return new Integer((int) value);
}