[Ifeffit] Athena: Data cannot be imported by using plugin PFBL12C

Dear all, I tried to import a data of multi-element detector at SPring-8 by using plugin PFBL12C to Athena, but it was not successful. if the number of rows in the file is about 2000[success.dat], it can be successfully imported. But for the data over about 4000 rows[fail.dat], it seems that several data at first of both converted energy and intensity are substituted by 0. column6.png shows intensity of ch6 vs energy_attained and I0.png shows intensity of I0 vs energy_attained. you can see this behavior. As a result, intensity cannot divide by I0, and data cannot be imported. if someone knows approach to solve this, could you teach me. Best regards, Yuji Hiraoka