Data loss please help

I have a SanDisk Ixpand 64gb drive. I had all my videos & images saved in Vault. Today i tried to open vault at first from my iphone X and it showed wrong password. It was a worry for me as it had all my priceless images & videos. I tried to gain access from laptop and still it showed incorrect password. I then tried to restore vault & after sometime it showed up results but i realized all my images & videos has been converted into file format & i can no longer open it.

Please help>
and get all my data back as soon as possible.
Please

ashish