recovering a corrupted captivate file (no back-up & already cleared cache)..

Hi ,

I am a new captivate user (using captivate 2017) and I've been working on a project for about 2.5 weeks and last night as I saved the file I got a message saying the file is corrupt and it won't open. I closed captivate and reopened it, cleared cache and tried opening the project again and I got the same message. (I also did not activate the back-up option, so I don't have a back-up file).

I searched online for help and started reading the discussions in the forums to see if there is anyway I could recover the project but from what I've read so far, it seems once you've cleared your cache, and you don't have a back-up, then your project is pretty much gone forever. Is this accurate? Is there still a way I can recover this project. My deadline is fast approaching so any advice or help would be appreciated.

Thanks