Hi all,          I am trying to fit Cd kedge EXAFS data of CdO and CdO-CaO solid solution. Like many others I ended with “Hard tests failed in fovrg. Muffin-tin radius may be too large; coordination number too small“error. Professor John, mentioned this may be due to insufficient grid size in calculating the phase shifts and he advised to post the "feff.inp", to have a look at it. But I have 38 feff.inp files in total (corresponding to CdO, solid solutions of CdO-CaO at various compositions and for dopents as well). I feel it will be hard to look into this may files, for any one.            I will be thankful if anyone help me, in how to overcome this problem. Here with I am attaching the "feff.inp" of CdO. Please tell me how to modify feff.inp file such that I can do myself for the rest of feff files   Thanks in advance. Srihari. V  VELAGA.SRIHARI, DAE RESEARCH FELLOW, X-RAY AND CRYSTAL GROWTH SECTION, MATERIAL SCIENCE DIVISION, INDIRA GANDHI CENTRE FOR ATOMIC RESEARCH, KALPAKKAM,TAMILNADU-603102, INDIA.