A packet can hold hundreds of plan sheets and a Project Manual of more than a thousand pages. A specialty contractor needs only a small part of it, but must find that part first.
Example: a gym equipment bidder needs one spec section, the floor plans and the gym interior elevations. A few structural sheets matter too.
Start with the front-end documents for dates, bonds and wage rules. Then find your spec section and the sheets that show your work. Check every addendum last.
Takeoff Tool reads a bid packet for one trade. It finds your spec section in the Project Manual and counts the required items on the plan sheets.