Who can work with files?
Files can be private, shared, or public as determined by the owner of the file.
If a file is private, only the owner can see and edit it. The owner can share the file with people, giving them either Reader or Editor access. Those people can then share the file with other people:
- Readers can read, comment on, download, and recommend a file. Readers can also add a file to a collection of theirs, be notified of changes to the file, and share the file with other people.
- Editors can read, edit, comment on, download, recommend, upload a new version, and set properties on the file. Editors can also add a file to a collection of theirs, be notified of changes to the file, and share it with other people.
A file owner can also make the file public, meaning everyone can read the file even if they are not logged in.
In some file lists, private files are marked with a private icon 
, shared files are marked with a shared icon 
, and public files are marked with a public icon 
. If a file is both public and shared, it is marked with a public icon. If you hover over the icon, help text explains that the file is both public and shared.
Files overviews, how-tos, and FAQs