The high resolution version is normalized with a step between the sampling points of 0.005 nm and the low resolution version is given in physical flux with a step of 0.020 nm.
Pixels are independent.
The other extensions are the flux calibration relations which enable to convert the instrumental flux into physical or normalized flux. They are binary table extensions and the relations are coded as spline representations. The nominal FWHM of the spectrum can also be retrieved in the header. In addition to the spectra of the stars, the archive contains the different intermediate files used along the data processing. They are described in the electronic version of the paper.