[Ifeffit] mu(E) of theoretically calculated spectra

Hi all, I am doing the theoretical fitting using Artemis. But I am unable to get the mu(E) of theoretically calculated spectra in Artemis. If I got it correctly, Artemis plot the theoretical spectra using FEFF code. But it gives chi(k) and chi(R). Is there any way to get mu(E) from this chi(k) spectra. Or in order get the theoretically calculated mu(E) spectrum of the given structure , we have to use FEFF code alone. How it can be done? with thanks Abhijeet Gaur Vikram University Ujjain (INDIA)