Earlier quoted context omitted.
> You are asking what if this guy has "web crawl data" that google does not have? No, I'm asking if he has permission to redistribute these files.
Are you attempting to assert that use of these files solely for the purpose of improving a software system meant to classify file types does not fall under fair use? https://en.wikipedia.org/wiki/Fair_use
Here's another one for you: Do you believe that all pictures you have ever taken, all emails you have ever written, all code you have ever written could be posted here on this forum to improve someone else's software system?
If so, could you go ahead and post that zip? I'd like to ingest it in my model.