This tool can handle large amounts of data and indexes quickly. Search results are very good and consistent, finding things that would be very difficult to search for in other tools. I work as a proposal writer and my group at a former company began using this back in the '90s, and never looked back. Far better search capabilities than any of the "proposal" software tools I have used, and makes them unnecessary for the most part. Handles most file types and will index embedded documents (and documents embedded in an embedded document). Includes proximity searching, which is highly useful, including the ability to set proximity order if necessary. Also searches using Boolean constraints, RegEx, etc.

I can search a large group of documents without processing.