How do I download QFX file of transactions

While I don't personally use this method (I’m linked to Mint), this Apple Support article covers the basics.

How to export your Apple Card statements

1. On your iPhone, open the Wallet app and tap Apple Card.1
2. Tap Card Balance.
3. Scroll down and select the Statement that you want to export.
4. Tap Export Transactions, then tap the share button  to email, print, save, or share the file.

If your iPhone has iOS 13.2 or later, you can export or download transactions from a previous month as a .CSV, .OFX, .QFX, or .QBO file.

Quicken 2019 and newer and QuickBooks 2018 and newer are supported. If you use a third-party financial app or software provider, contact them to see which versions are compatible with these file types.

Download or export your Apple Card statements and transactions - Apple Support

I find this a very weak solution, from the perspective of my financial security. Who waits until the end of the month to download transactions? Security experts recommend you monitor your financial transactions at least weekly. Apple's solution does not allow me to download my transactions until the month has ended and the statement is generated.

It's the 19th of the month, I have made significant purchases on my Apple Card this month, I want to upload that data to my banking program now, not wait till Apple generates a month end statement. Most credit cards let you define a start and end date range, including the current month, to export data. My only recourse with my Apple Card is to enter them manually and individually. Why isn't there a current month option to export transactions?

Currently, the Apple Savings Account statements, when first statement is issued, will be available in pdf. format only.