Iterating through multiple rows of Input

[Rahulathavle]

I have some input files , each input file has some columns ( count of columns can be anything) 
I have kept fist column Fix and processed column F1 and F2 
Now I wanna use same macro workflow to process F1 and F3 then F1 and F4 and so on .
In short I wanna keep F1 fix and wanna loop through other columns one by one .
and result should be appended one below other.

I am able to process F1 and F2 of all input files but not able to process each and every column of files.

Please help.

[Rahulathavle]

Also how to provide input/output to python module???

[Rahulathavle]

Hi