After Dorio 3 crash, my file won't open

I get a very simple error:

“Error opening file”

The file is attached, is it possible to recover?

Alan
Experiment 700.zip (6.17 KB)

I’m afraid not: the file is incomplete and cannot be recovered. Please use the last working backup version from Dorico Projects/Backup Projects in your documents folder.

Brilliant Daniel, what beautiful software you all make!