Hello Reuven
I am still looking for an answer to my question.
I have a very simple project to do, it is a tank filled with water which is maintained at some temperature during some period of time.
The problem is there are 10 of them tanks, so I have to copy the same operands for each one of them, only the number of tank changes.
With an Excel file it is simple and fast,.
Regards
Zbig