How to exclude a specific category when autoblogging from another websites RSS feed.

Hi,

I own an auto blogging website that focuses on Bitcoin and Blockchain.

I get articles from over 40 websites published to my website using WP Automatic.

I want to know if there is a way to exclude specific categories from the RSS feeds of these websites.

Does anyone have an idea how to exclude a specific category when autoblogging from another website?