Thank you for utilising QuickBooks, @DouglasUT. I've got a few suggestions to correct the CSV payment file template.
Since you only have the option to choose the Starling template, modify it to put the business and payee name accordingly.
Alternatively, consider utilizing any third-party converter tool. Just go to the QuickBooks Online Apps to search for any software integrated with us. From there, you can read reviews that might help you choose one that best suits your needs.
On the other hand, you may manually enter the transactions into the Excel file to follow the required format. It will help you transform it into the accepted one.
Take note of this reference to avoid issues or errors moving forward: Format CSV files in Excel to get bank transactions into QuickBooks.
Furthermore, you'll want to categorise and match your bank transactions to ensure they're posted in the appropriate accounts.
Feel free to return to this thread if you need further assistance creating a bulk payment file in QBO. The Community is open anytime to continue helping you. Keep safe and have a good one!