It is possible to undo revert snapshot

Hello Gentlemen,

I have a life or death case in a company here in Brazil, they called me today for help.
The fact is that they reverted snapshots of a file server, the VM returned to the state of 2018 and all files were lost.
In my understanding, without a backup it is impossible to recover the virtual machine, go back to the state of today, I think that even VMware itself does not have technical support documentation to resolve this without the use of a backup.
But, I ask here if anyone has already managed to do this magic, that is, almost a miracle.

Any idea ?