Hi,
We work a large number of files within Asana and it would be great to be able to “label” them. It is critical that the correct file for us is chosen to progress with. A task can hold many iterations of a file and so being able to label them would allow for zero confusion on which file is the correct one to grab (whether in a task or the files view). In basecamp, you can create your own custom labels based on your team’s needs/functions and we would love to see this functionality in Asana as well.
Label Files/Attachments
Hi 
Surprisingly enough, it looks like this was not asked before in the community! Upvoting this. Alternatively, you could have a task to “hold” versions of the same file. That would give you the ability to reference the task, tag it etc.