Currently, the functionality of the Knowledge Storage for Closebot doesn't give you any sort of vlookup capabilities, it only creates embeddings.
For example, if you had a csv of menu item names, prices, and website links you can't currently ask the AI via Closebot:
> Give me the website links for all of the menu items that are less than $10.
This sort of functionality has already been built on many fronts (including at OpenAI inside of playground.openai) and would be a valuable addition to the CloseBot feature set.