You can read and view files uploaded to projects, and see them rendered on their own "File Detail" page. Each file has its own unique URL that you can use to cite and navigate to them.
First, open the project that you want to view.
Then scroll down to the "Files" section, and select a file from the list.
The "File Detail" page will appear, where you can read, download, and share (if public) the selected file. If you have write-access to the project, you can additionally add tags, check out, and delete the file from this page.
If the file is an image, click anywhere on the image, then use your cursor to navigate around it.
You can scroll the mouse wheel to zoom in and out on details.