ArcticDEM project was a joint project supported by both the National Geospatial-Intelligence Agency(NGA) and the National Science Foundation(NSF) with the idea of creating a high resolution and high quality digital surface model(DSM). The product is distributed free of cost as time-dependent DEM strips and is hosted as https links that a user can use to download each strip.
With this in mind and with the potential applications of using these toolsets there was a need to batch download the DEM files for your area of interest and to be able to extract, clean and process metadata. In all fairness this tool has a motive of extending this as an input to Google Earth Engine and hence the last tool which is the metadata parser is designed to create a metadata manifest in a csv file which GEE can understand and associate during asset upload.