ExFDO implements a method to QUICKLY STORE and FIND your personal DATA and OBJECTS. So, each time you deal with a subject, create it and add data to it using ExFDO. Added data can be files, notes, urls, secret data, location of objects, tasks to do... In this way, you constitute as you go along, a big database of personal subjects that you can easily query to QUICKLY find any data or object you look for.