So, for example I have next table-data:

"Data basic.txt"
a      b
-------------
1      1
2      5
3      10
4      30

and, I want to open that text file, then each column is multiplied by a number and score a save in new file:

process: a*2, b*3

"Data out.txt"
a'      b'
-------------
2      2
4      15
6      30
8      90

I think in QBASIC logic, this confuses me.
I do not know how to solve this - please help me.

THANK YOU!

Branko