Not the original commenter, but to add some more context. The words usually removed in traditional NLP applications are called “stop words” and are usually more “non-valuable” words like “the, and, but”.
However, LLMs don’t skip stop words, they actually need them to better understand the context of the sentence. That being said, LLMs are not great for statistical analysis and a simple word count would be more consistent and faster.
The download feature is always in some state of broken, but it has gotten a lot better over the past couple of years. If you haven’t tried it in a year or so, you may have better luck now.