You should be able to convert Quicken to Quickbooks with the trial version, cattani.

Since you have Quicken 2019, you no longer need to use the Quicken converter. Let's convert directly to QuickBooks using the Conversion Utility.

Here's how:

1. Click File menu.
2. Select Utilities, then Convert, then choose From Quicken.
3. Select the Quicken file (.QDF) that you want to convert.
4. The Conversion Utility will guide you through the rest of conversion.

Check this article for more information: Convert Quicken data to QuickBooks Desktop.

Happy to help if you have additional questions.