Hello Sir,
               I had done fitting of a Cu2O data taken at SSRL EXAFS beamline in transmission mode, Stanford, by my research guide
               Dr. B. D. Shrivastava.
               I had used here the fiting procedure as discussed before in this mailing list. The fitted curves are coming   nice, but the 

              values of some fitting parameters are not reliable as shown bold below.

  amp             =     0.4898160   +/-      0.0469990    (1.0000)
  enot            =     7.6843630   +/-      0.4828620    (0.0000)
  alpha           =     0.0022670   +/-      0.0030950    (0.0000)
  ss011           =     0.0003280   +/-      0.0013130    (0.0030)
  sscu11          =     0.0174780   +/-      0.0016220    (0.0030)
  sscu11o11       =     0.0470530   +/-      0.0655560    (0.0030)
  ss012           =     0.0070100   +/-      0.0044660    (0.0030)
  sscu12          =     0.0186980   +/-      0.0093570    (0.0030)
  ss013cu11       =     0.0088980   +/-      0.0190580    (0.0030)
  sscu13          =     0.0196150   +/-      0.0062940    (0.0030)
  sscu13012       =     0.0084870   +/-      0.0067030    (0.0030)
  sscu11cu11      =     0.0071110   +/-      0.0132390    (0.0030)
  sscu12cu11      =     0.0111440   +/-      0.0139470    (0.0030)

Def parameters (using "FEFF0: Path 1: [O1_1]"):
  delr            =     0.0041920

           

So, if someone can please tell me that where I had done wrong or what should I do to make things right I will be very thankful.    The Artemis project file is attached herewith.         
           

           With regards
            Abhijeet Gaur
            Research Scholar
            School of Studies in Physics
            Vikram University, Ujjain (INDIA)