Document folders, plastic envelopes, even cardboard boxes for cuttings and other useful background material junk. Mine has some glass vases and a plant sitting on a large lace runner. It doesn't hide it, just makes everyone believe that its accepted. They believe it, they accept it, it's no problem. I don't care much anyway.
Computer software Is another ball-game.
MS Word is slowly becoming a de facto standard. You may not like its intrusive nature, but it is widely available. Take care when sending such files as attachments to emails as they are very easily attacked by emails. One day perhaps Microsoft will tackle the problem. The reality is that any word-processing program will do the job.