Data release: Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande

This data release provides the numerical data used to generate figures and tables in the publication "Search for neutron decay into an antineutrino and a neutral kaon in 0.401 megaton-years exposure of Super-Kamiokande". The dataset includes the number of entries for each bin in the figures and the values in the tables, all exported in CSV file.