Open / preview attached documents in Review Space

When a file is attached to a topic (non-dita resource), it cannot be opened from Draft Space to verify that is it the correct document attached.

We would like at least standard filetypes (xlsx, pptx, docx, pdf...) to be possible to open in a new browser window.

Text indicating that articles mentioned in Product News are available for countries listed in an attached Excel file, with a note that the resource cannot be downloaded or previewed in DraftReview Space.