git clone https://github.com/gladcow/qwc_diff_export
cd qwc_diff_export
python3 qwc_block_data_export.py http://node-01.testnet.qwertycoin.org:8197 >> output.csv
or
python3 qwc_block_data_export.py >> output.csv
(http://localhost:8197 will be used in this case)