In this case PhotoRec would not work.
The computer is supposed to do an auto back-up daily (and claimed it was). When Grant last checked it at the end of March it was doing so. Perhaps he did something to it as it obviously hasn't worked since! :-?
I did not accidentally delete it (that would have been easy to fix) but I overwrote it. Went to Save As and when it asked if I was sure, I said yes. As soon as I clicked it I realised it was wrong (I had both the magazine and the cover open at the same time and had been working between one and the other and had meant to save the cover but selected the mag name instead) but no matter how loudly I screamed "NO! I MADE A MISTAKE! STOP!!!! it did not listen :facepalm: &c:ry
Grant has retrieved all but 13 pages of it. Of course of those 13 pages, which had about 6 different articles from memory, 2 were written by me so I don't have a copy. One of them had taken over a week to sort, write, check, contact others for confirmation of facts etc. If only I had sent a copy to Donna (as a lot had to do about her experiences with getting the turtles out of the quake zone) for checking I would have a copy for her to send back but I had not yet done so. :tears:
Luckily I have a couple of articles ready to go into the August mag so I can use them instead then laboriously re-write the other, which was about 6 pages on its own.
Thank you to those in Chat last night who were offering possible solutions.