In reference to sharing the calendar or other Outlook folders, what is the difference between “folders,” “items,” and “files”?
folder for each of the following sections: Mail, Calendar, Contacts, Tasks List, Journal, or Notes. An item refers to an email message, an appointment or meeting, a contact, a task, a journal entry, or a note. A file refers Microsoft Word documents, Excel spreadsheets, Power Point presentations, etc. placed in the Mail folder. Files can also be placed in folders other than the Mail folder, however the files are placed as attachments. For instance, a file can be placed in the Calendar folder, however the file will display as an attachment in the specified appointment date/time area.