[Ifeffit] probem with run Athena

Dear Matt, Many thanks for your answer yesterday. Since I am a novice, I am now still puzzled to use this software. I just want to process some XANES data for selenium speciation identification. As attached in the annex(three samples and four references, some have analyzed for several times). When open SixPack, I can't import any file from which attached in the enclosure. I don't know whether it is the problem with the format of the data. Thus, I thought probably I need to open the Athena, while it prompted: Cann't execute Grnd.exe.... Sincerely wish to obtain guidance from you. Kind regards Mingliang