Hi @dcw22 and welcome to the forum!
I’m assuming you’re talking about this tutorial for building a front-end on a Jupyter notebook?
Unless I’m misunderstanding what you are trying to do, you could use a FileLoader (like in the linked tutorial) to upload your csv file to Anvil. Then when a file is uploaded, call a function in your Jupyter notebook using the Uplink and pass in the uploaded csv. That function in the Jupyter notebook could then use pd.read_csv to create a pandas DataFrame from the passed in file.
I hope that helps 