File information window (click Help in Menu Bar, CTRL-click About Quicken) does not show any information about documents attached to transactions or accounts.
Here's an example of this File Information window, for reference:

Additional information I would like to see:
Number of attached documents: 12,345
Total document storage: 1,234 MB
While I'm thinking about it ... information about the version and build level of Windows would also be nice to have, if it's easy for the program to obtain it.