The Import feature is needed when exchanging data between different IUCLID installations, but also to import data back that were written to an export file and then deleted, for instance to keep previous versions of a dataset. The prerequisite of any data import is that IUCLID export file(s) with the file extension "i5z" is/are available. The Import feature allows to either import a single export file or to launch a bulk import in which several export files can be included.