@Override
    public BigInteger convertToJavaData(ReadCellData<?> cellData, ExcelContentProperty contentProperty,
                                        GlobalConfiguration globalConfiguration) {
        return cellData.getNumberValue().toBigInteger();
    }
BigInteger and number converter

@author Jiaju Zhuang
fastexcel-core/src/main/java/cn/idev/excel/converters/biginteger/BigIntegerNumberConverter.java