A whole afternoon of editing GONE!

Hi team, 

I really don't know what happened this afternoon, but I spent the afternoon editing, exporting and going about my business. When I was sharing the files I'd edited, I was getting messages back from people to say the files wouldn't play. Audition didn't crash, or show any warnings. 

The .sesx file and the mp3 files that I exported are all absoutely unreadable. I've tried repairing them with all the usual services and they seem to be absolute toast. Trying to open them on Audition returns a 'dat?' error. If anyone has experienced similar, or even better could retrieve the data in the files, I'd be hugely grateful. 

I've attached the main edit below, in case anyone fancies having a go at fixing! 

(I can't upload below because it isn't even recognising it as an mp3!) 

https://we.tl/t-uMEtzM8IAK

Thanks