We print a fair number of posters from Excel charts. Our customers find them to be a great way to keep track of projects and schedules. We actually keep our job board this way in the MegaPrint Inc. shop.
By using gloss lamination over the paper poster, you can do dry or wet erase marking on the chart. They are durable too- we’ve been using our job board for years.
Another great application is vacation schedules. We keep an Excel poster of the days everyone has scheduled for vacation, and it helps us keep enough people in the place around the holidays! We make a new one every year.
I actually started the company when I couldn’t easily get a spreadsheet printed as a poster, although in those days it was in Lotus 1-2-3!