Recover video from a single 360 INSV file?

Hello there!

I would be very grateful for help on the following:

Using my camera yesterday I recorded - approx 30 mins,

With seemingly enough battery left and disk space.  

Afterwards with red light on I tried different ways to turn off recording

and shut down without fortune. Transferred files to computer and tried

to open the files on the computer and later on App.

Mini Pop up appeared - file will not open - corrupted

is the any way to:

Recover video from a single 360 INSV file?

Thanks

Geoff