If I understand it correctly, one usually uses the term enclosure when referring to extra documents to e.g. a letter. But what if these extra items are not other documents and papers?
Say I have written a report discussing some of my developed software. It could be a school paper, and the paper and the files in union make up the final product handed in.
What is the right term for the software files belonging to this report? The dictionary definition of the words above don't quite seem to fit.