Useful online calculators and offline analysis codes for Nion UHERMES-200. The IMFP calculator codes were modified from Dr. A. Husain's codes (https://www.aahusain.com/posts/2020/11/electron-imfp-estimate/), which were based on the Matlab code of Dr. R. Egerton (https://sites.google.com/view/tem-eels-org/tem-eels-org/). Webpage URL: https://seank59.github.io/UBCNion/