The wonders of Microsoft have contrived to remove from my computer all the work on this project during the last month.
I have enough other stuff to keep me occupied around the house until 2023, so the Crete project is, pro tem. abandoned.
Update. I discovered my error. Trying to purge my “cloud” storage I failed to spot that when deleting a file in the cloud it will automatically delete it from all devices linked to the account. I thought the cloud storage was simply another annoyingly default storage location. I do have a portable back-up disk which was still plugged into my laptop, and so was purged along with all my other copies of the file.
A lesson learned. Oh, for the days of a plug-in cassette recorder and a large quantity of tapes for file storage. If you don’t remember that, then you may also be unfamiliar with 5 1/4″ floppy disks, 3 1/2″ disks or maybe even CDs. I have used them all and still own some. I now only own the hardware to read the latter.
When I retired eight years ago, I left under my desk an IBM “portable” PC (mains power and no built-in memory, but with a 256 Kb floppy disk drive and a post-card sized orange and black screen display), along with the disks used in the 1980s with the calculation (using Lotus 1-2-3 software) of our sales seasonality pattern, and some games disks based on a 4-colour low resolution display. In those days I actually understood the workings of computers!