This python script will take an input of HTML or webarchive of the login page of https://internetbanking.mebank.com.au, parse the semi structured HTML content and return the transactions as structured data: JSON, CSV.
As of 05/12/2025, Australian bank MEBank (division of Bank of Queensland) offers an Internet banking platform with no function for transaction export, such as to CSV or OFX.
So this will do the job in the interim.