I like to think I am smart and in the loop - but would this allow me to feed all sorts of PowerPoint presentations, word docs, text files, etc... so that new hires could get a concise answer to business processes?

There's a lot of work going on in this area right now. Check out GPT Index:

https://github.com/jerryjliu/gpt_index https://github.com/jerryjliu/gpt_index/blob/main/examples/pa...

GPT isn't multi-modal yet (so no images), but that's coming.