Office 365 file sharing on SkyDrive
Microsoft Office 365 Home Premium allows users to access and share documents and other files stored on SkyDrive. When you are signed in, Office 365 Home Premium saves your documents to SkyDrive by default so you can access the files from any Internet-connected device. Via SkyDrive, documents are automatically backed-up and you can share, collaborate and edit the files online.
File sharing for business and enterprise editions of Office 365 is managed via SharePoint Online external sharing.