No, unless you have some special sw.
But why? SAS indexes uses b-tree style indexes. What else do you need to know?
If you have some specific thoughts, you might get an answer via SAS tech support.
it was just for my education, just to understand what is inside the index auxiliary file..
As far as I understand, reading the documentation, values of the indexed variable are sorted and you're having a indication (certainly a page number and a line number (inside the page or an absolute number ?) pointing the observations.