The data products will be made available internally and through the 4MOST Public Archive (4PA). In both cases, and depending on the level of granted access, the spectra will be accessible as multi-extension FITS files. In addition, 4PA will enable the worldwide community to query ancillary catalogues and available products of science analysis of 1D spectra, and then to download the results in the FITS, CSV and VOTable formats, following the standards of the Virtual Observatory.
See also the description of the data products.