Hello, @Corki. Thanks for reaching out and bringing this to our attention.

As mentioned by my colleague @JessT, we have no control over how your bank converts the file as it's thru your bank's platform. Thus, I recommend contacting your financial institution so they can further check it on their end. 

You may also consider checking the converters provided above by @JessT to help you convert the file. 

In case you encounter any Web Connect import errors along the way, you can use this article to resolve them: Fix Web Connect import errors.

Feel at ease to comment back below if you have some follow-up questions about handling your transactions in QuickBooks. I'll be here to lend a hand.