Hey there aharper,
Thanks for reaching out to us here and welcome to the QuickBooks Community! QuickBooks Online is a great software program for all of your bookkeeping needs. However, there currently isn't an option to upload your QuickBooks data file to RBC Express directly. In this situation, you'll need to export your data and save it to a file on your computer, then import the information through the RBC File Express Transfer feature. Here is a helpful guide that will show you how to export your data. In addition, I suggest leaving feedback by heading to the Gear icon and selecting the feedback option. These comments are viewed and considered by our developers as they create new features for QuickBooks.
If you have any other questions, feel free to reach out here.