I wish there something like that for RSS feeds. That would be fantastic.

For news specifically, Google News and Ground.news both aggregate and cluster similar news articles.

At least on the Mac (bsdtar) you can extract single files out of a tar file.

E.g.,

Create the tar file:

tar cvzf pseudo.tgz pseudo/

Move to another directory

cd /tmp/tt

Extract a single file:

tar -xf ../pseudo.tgz pseudo/10481_2017.1069.png

You say PC, so might want to check the tar version you are using and see if there are extra parameters to do the file extraction.