I am a research scholar in Inter university accelerator centre, new Delhi, India. I am facing one peculiar problem in athena data processing. I have attached the .xls file in the mail for Zr k edge which has been generated in the beam line at RRCAT. when I import this file in athena it always shows a question mark in the place of Chai (ϰ) at the y axis. I am not able to sort out this issue that why that question mark is coming. I have attached the snapshot of plot window also.

I shalll be highly obliged if yo kindly help me in resolving the issue.

Yours sincerely

Arkaprava