python – JSON to XML – Complicated file. Sub Objects

I have a JSON file with the following data.

{
    "ref_object": "additionalData/areas",
    "row_count": 3,
    "rows": [
        {
            "area_id": "-LAJ8kR1KLHLJlYwtbSl",
            "issued_status": false,
            "issued_user": "A1",
            "matcheck_user": "A1"
        },
        {
            "area_id": "-LAJ9BxJbLtJ9uj8gj3M",
            "issued_status": false,
            "issued_user": "A2",
            "matcheck_user": "A2"
        },
        {
            "area_id": "-LHgFnRjjMJrKp57owKM",
            "issued_status": false,
            "issued_user": "A3",
            "matcheck_user": "A3"
        }
    ],
    "sub_row_count": 3,
    "sub_object_rows": [
        {
            "area_id": "-LAJ8kR1KLHLJlYwtbSl",
            "type": "buildPlannedDays",
            "date": "2019-03-01",
            "count": 6
        },
        {
            "area_id": "-LAJ9BxJbLtJ9uj8gj3M",
            "type": "buildPlannedDays",
            "date": "2019-03-02",
            "count": 6
        },
        {
            "area_id": "-LHgFnRjjMJrKp57owKM",
            "type": "buildPlannedDays",
            "date": "2019-08-03",
            "count": 11
        }
    ]
}

How do I export this as either CSV or XML?

I tried using examples but none seemed to cope with Sub_object.