[Ifeffit] Farrel Lytle IXAS XAFS database data energy calibration

[bajnoczi]

Dear List Members,

  I need some nickel reference spectra, and I thought to use the Farrel 
Lytle IXAS XAFS database. I have found some proper ones, e.g.:
http://ixs.csrri.iit.edu/data/Farrel_Lytle_data/RAW/Ni/nifl.090
and
http://ixs.csrri.iit.edu/data/Farrel_Lytle_data/RAW/Ni/nicl.047 ,
but it is not clear from the files how these spectra are energy 
calibrated. Can somebody help and give some detailed information about 
it for me?

  Thank you for your help in advance.

Best Regards,
Eva Bajnoczi