Convert VDATA to PNG

vdata to png conversion is likely related to recover data from Vaulty security utility, something that is not possible without the original tool. If you are certain that your .vdata file is actually just secured PNG picture, it might be possible to recover your images. But this requires at least basic knowledge of HEX editors, so before you attempt anything make a copy of your file before you alter it.

1. install some  HEX editor (google for it) and open your .vdata file
2. look for odd "obscured" text inside the file when you open it with HEX editor and delete the word
3. save the file and rename the extension from .vdata to .png

If it works, your picture should be restored now.