The original folder structure is given in README.md. To reproduce it, create a folder "ConcreteShellFEA" with two subfolders, "datasets" and "scripts". Extract the contents of the datasets ZIP folders (datasets-01.zip to datasets-28.zip) in the "datasets" folder and move the three Python scripts (load_tabular_datasets.py, load_image_datasets.py, and load_graph_datasets.py) inside the "scripts" folder.