OK, it seems that i now understand how to make the input file. However, when i try to import the input file and run the program, a message appears: "File not open. Press OK to ignore and risk data corruption. Press Cancel to kill the program." The same message appears when i import the example file... Has this happened to anyone else?

Sometimes the programme does not run in 64X processor. Some of these programmes do so. I will check this and come back.

Hello Ziva

Please indicate how could perform the input file for PERMUT

Thank you!