Navigate to the location of the file that you want to mark as Read.
Do one of the following:
Click the name of the file to download and view it in a text editor.
Click the drop-down arrow next to the file that you want to mark as Read, then click View Details.
Click the blue circle to the left of the unread file.
Navigate to the folder that contains the files that you want to mark as Read.
Click the Configure icon next to the folder name, then click Mark Folder Contents as Read.