The format of a document is relevant to the recipient. Not every text editor will open a Word document. Also, you probably wouldn't look at someone funny for r

The format of a document is relevant to the recipient. Not every text editor will open a Word document. Also, you probably wouldn't look at someone funny for requesting a kleenex. All the things you mentioned have pretty strong brand-name recognition, such that e.g. even non-PowerPoint slide decks are called PowerPoints.