Help extract numerous text files and how to use avg formula
 

Hi,
I have numerous text files (300+) i want to extract into one excel
spreadsheet. Each text file is approx 1800 lines with the same format.
I know Excel doesn't support that many rows, hence I would like a way
to extract one text file into excel (step 1), reduce the number of
lines by taking an avg every 30 lines (step 2) so I would be reduced to
60 lines per text file, then continue to extract the next text file on
the list i created (step 3). Anyone with ideas? Any help is much
appreciated. Thanks in advance

Wendy