The copy (ctrl+C) and paste (ctrl+V) are not so standard, they work well only with programs from the same maker as Excel and MS Words. If one tries to copy/paste from a musical score editor (Encore, Finale, Guitar Pro) to MS Words, he will obtain, in MS Words, an icon, not a copy of the musical notation.
I would like to use MS Words to write an article or a classical guitar method and use a midi sequencer to edit a musical piece. Then, it would be nice to add that piece (in musical notation format), into the article made with MS Words.