Hello,
I have been using drawio to produce a P&ID for my dissertation. It had countless days of work and effort put in. Today whilst I was editing my file, it suddenly shut down and when I tried to retrieve it, then it says 'Not a diagram file'. When I click the information on the file, it says there are zero bytes. The laptop I did my work on is macOS 10.15.6.
Below I have attached my file
Please can anyone help me to recover it?