For study purposes, I would like to download blocks from a specific period, i.e. January 2017 - June 2017, in blk.dat format (blk00000.dat, blk*.dat).
I downloaded blockchain.core but it makes me download the whole blockchain - correct me if I'm wrong.
Also I tried with blockchain.info but the problem is that I can only get one block at a time and just in Json or Hex format - don't need those.
So, do you know how could I do and with which program or API to use?
I'm a beginner, so please the more details you can give the better it is, even if they seems obvious.
For this work I'm coding in python.