Research data to: The rigid core and flexible surface of amyloid fibrils probed by magic-angle-spinning NMR spectroscopy of aromatic residues Full text available at https://doi.org/10.1002/anie.202219314 ################################# '2D_hCH_spectra' contains 2D spectra for all samples as specified in the README file in the folder. 'Refined_structure' containes the PDB structures for the refined structures that were calculated for this work. 'Example_REDOR_fit' and 'Example_relaxation_fit' contain the scripts, raw data and output that was used to analyse dipolar couplings and relaxation rates. The scripts are provided as python code in Jupyter notebooks. The necessary python libraries can be found at the beginning of the sripts.