Thank you very much Jim, it does work perfectly
I still have to search to understand fully how it works . . . I mean the syntax and everything . . . I would like to output the dates e.g. "05JAN01" in the first column aswell . . .

I do notice a difference between the values of the txt files and the values in the csv . . .
For instance when the first value is " -0.247297943318988E+07" (see the exemple in my first post ), it becomes "-2472979.90616501" (decimal part, it seems). I don't know yet if I actually need that precision . . . I'm checking this.

Any ideas ?

Your code will help me A LOT . . . Thank you again !
Ackheron.