After a set of files have been translated in an online project, there's not an easy way to get all of them back in their original formats. When the project is finished and you download the files, all you get are the sdlxliff.
If you open a single file in OE, and click on the Download File button, you get the file back in it's original format. However, this is not at all intuitive, nor is it usable for a project manager when dealing with hundreds or thousands of files.
It will be a nice improvement if you can provide a web UI version of "Generate Target Translations" to get back all the translated project files in their original format.