Numbers' File Ownership Data
Most of the file types I've ever worked with, I've been able to add all my information to confirm ownership of the files I work on...especially photos/images. It's probably so simple, but right now I can't seem to find anywhere that allows me to put information embedded in the file that confirms I am the owner.
Obviously my name shows in the "Preferences" pop-up for the entire Numbers software program, but since most people I've worked with use Excel, I want to make sure I can control the file in some way before I export each file to Excel format. Thoughts?