Nuclear data centers world network

The data are given on the forms of the international cooperation in the world network of Nuclear data centres which are interesting for specialists working in the field of nuclear spectroscopy and studying atomic nuclei structure. The formation of the international file of estimated data on the structure of nuclei and their ra-dioactive transformations, the so called CINDA-file is described, as well as the collection of experimental data on nuclear reactions under the effect of charged particles and the formation of international library of experimental data on the cross sections of nuclear reactions