“Cherry Blossoms of Historical Castle site” (2006) “I never used Excel at work but I saw other people making pretty graphs and thought, ‘I could probably draw with that,’” says 73-year old Tatsuo Horiuchi. About 13 years ago, shortly before retiring, Horiuchi decide he needed a new challenge in his life. So he bought a computer and began experimenting with Excel. “Graphics software is expensive bu