Extracting file name.

I have started an internship and have to use KNIME analysics platform for the first time.

Now I am able to read an excel file and upload it to Sharepoint as a List.

The problem I have is that I have to keep automation in mind as a part of my internship. But I have no clue how I can change my workflow to automaticly fill in the name of the list (using the name of the excel file) that will be uploaded.

This is my current workflow.