MS SharePoint Lists - Accessing Embedded Files

Actually, I do not have any errors, yet:

2023-10-26 17_41_46-KNIME Analytics Platform

However, I see a table, only. I am not able to access files that are stored within a list element.

I was trying to retrieve some basic information (and maybe files in a later state) via REST API … however, I failed so far as explained in the following thread (I should have combined both … shame on me):