https://www.dailymail.co.uk/sciencetech/article-3692283/The-diary-pyramid-bu... Long link, but it amounts to the Cairo Museum's July 2016 display of papyrus found in 2013 which are associated with building the Great Pyramid, during the 4th Dynasty of King Khufu. Look hard, and you'll find an image of what's clearly a table of entries inscribed in rectangular blocks. This came to my attention on a recent cable TV history show on the Great Pyramid, where the narrator/archeologist referred to these as a "Excel spreadsheet" of the supplies logistics at the port of entry for pyramid goods and supplies. Hieroglyphics for numeric values are not overly complicated, so with patience one may be able to read off some of the notations. In the cited description, it even says "Revenue was written in red, while what was paid to workers would be written in black." It's not quite a computer spreadsheet. But to see credit/debt paper ledgers from 45 centuries ago is informative, and exciting. And among the first business use of computers was for bookkeeping of this class. so it has some meaning to vintage computing. I don't know if the Babylonians used clay tablets in this fashion. Herb -- Herbert R. Johnson, New Jersey in the USA http://www.retrotechnology.com OR .net preserve, recover, restore 1970's computing email: hjohnson AT retrotechnology DOT com or try later herbjohnson AT retrotechnology DOT info