1. The document provides instructions for saving files, sharing files with other users, researching terms using Smart Lookup, getting help using Tell Me, and new features in Office 2016 such as signing into OneDrive and customizing the user interface.
2. It describes how to save a file, share a file by inviting other users and restricting their access, look up definitions of terms using Smart Lookup, and get help using the Tell Me search box.
3. Additional sections cover signing into OneDrive for cloud storage, adjusting user account information, customizing the color theme and background, and using the Backstage view to open files from recent folders, OneDrive, and other locations.