Hi
I tried opening your file on a few different computers and different Excel versions.

I always get the same error, which I expect is the same as you get ( I get the German equivalent message as most of my Excel is German, roughly translated that error is “File not found” )



So I expect the issue is a corrupt file.

I doubt I will get any further on this any better than you. But I will keep the file and occasionally try if I come across any other ways.

I doubt I will be able to help further.
Possibly someone else might step in who has some experience with corrupt files.
But I will post back if I come across anything else by chance

Alan