Dear Pankaj Singh Rawat, Its mostly because of wrong file or corrupted data file. Does Athena plotted your data? If not, then there is an issue with your data file.

From your screenshot, it looks like you have uploaded XAS data measured at potassium L3 edge.

And looking for Oxygen edge data. K edge of oxygen is at 0.537 keV but your E0 is at 292.11 (unknown units) Please check again the data file in a text editor like notepad or word-pad. Before coming to athena, try plotting your data via some other plotting software like gnuplot. Make sure the data file doesn't have any un-necessary characters. See which columns are marked for energy and mu. I am sure Athena could read wisely. good luck Mahendra ============================ Dr. Uma Mahendra Kumar Asst Professor of Physics School of Advanced Sciences VIT University-Vellore 632 014 Bharat VIT – Recognised as Institution of Eminence (IoE) by Government of India ________________________________ From: Ifeffit on behalf of Pankaj Singh Rawat Sent: Monday, September 30, 2019 10:50 To: ifeffit@millenia.cars.aps.anl.gov Subject: [Ifeffit] About Athena Hey There, Good Morning.I am using Athena to analyse O-k edge XAS data. After uploading the data to the Athena, Fourier transform parameters are not showing. attaching a screenshot of home page. I'll be thankful to you for any suggestion. Thank you. hoping to hear from you soon. -- Pankaj Singh Rawat PhD Research Scholar GBPUA&T Pantnagar