Hi all, I had posted a problem related to fitting results of Cu2O. Bruce sir had suggested me to go through the Metal oxide modelling part of 14 chapter of Soil Analysis book by Shelly D. Kelly madam. I had gone through it and it really helped me in understanding the things in better way. I had done the fitting according to the procedure given in it. But still there are problems with fitting results. like 1. The value of SO2 is coming low. 2. Value of E0 is coming high though I have calibrated the experimental data. 3. The ss (Debye Waller factor) for some of the paths are coming very high. I am not able to understand the value of ss for multiple scattering path. One more problem is that if I I try to align the data with theory by adjusting E0 as given in 14 chapter, the data get distorted. The Artemis file is attached. This time I had made fitted the whole data in one fit by taking all parameter as guessed. With thanks in advance Abhijeet Gaur Research Scholar School of Studies in Physics Vikram University, Ujjain, India