Oh oh oh, I have a story about a quick setup. Sent a csv file to someone in the same org. Guy said that it was not opening. Wanted me to come to their office to see. I told them that IT support should fix it, since I can't, and every machine on my OU could read it. I was the bad guy. Yeah, quick setup my ass. Users can't be arsed to understand that their setup isn't properly configured.