Help with data
 

I need your help again..... I have 20 different files containg economic data
from some of our company's branches. Now, I need to draw some of these data
into a new file but each, in a different sheet. The original data might be
revised so I shoyld also be able to refresh the file. I don't want to use
links and I am not familiar with macros.... Then I will consolidate this data
(this is the easy part). Please help!