Follow the steps to open the required file in viewer.
The task dropdown at the top enables you to view and complete pending tasks by clicking on task name directly as shown in below screenshot. In case of multiple tasks, you can view and complete pending tasks by clicking on the down arrow next to the task name.
Above screenshot shows that user has pending tasks 'For Comment' with due days on selected file.
Click here to learn more about file tasks and how to complete pending tasks as and when required.
Next Article: View Superseded Revisions of a File open in Viewer