Each channel in a class team has a Files tab, a place to store documents relevant to the channel. Files can be opened and edited by clicking the title. Documents are collaborative and can be edited by everyone in the class team unless it has been added to the Class Materials folder in the General channel. Files here can only be read by students. Hovering over the files reveals the three dots to rename, copy, move and other options to manage the document. To add files go to a files tab in any channel and use Upload to add existing material or press +New to create a new file by selecting the type of document you wish to make.