Spreadsheet apps are great for crunching numbers, but if you know your way around them, they can be used to do a whole lot more, like create amazing works of art the way 76-year-old Tatsuo Horiuchi did. Okay, no, that’s a LOT of work. Instead, you can just use code wizard Amit Agarwal’s nifty Google Sheets template, feed it a 300×300 pixel image and watch the Web app turn it into a perfect piece of spreadsheet art. It’s a neat little trick that only takes a couple of minutes, but will wow your colleagues who’ve been goading you for weeks…

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