1) dowload, in the DataBase/LevelScheme/Downloads folder (create it if not existing), the zip files (3 files) from: https://www.nndc.bnl.gov/ensarchivals/
1) download, in the DataBase/LevelScheme/Downloads folder (create it if not existing), the zip files (3 files) from: https://www.nndc.bnl.gov/ensarchivals/