Um... there is. MemcardRex can open extensionless files if you choose "All files(*)" or drag and drop the file on the application.Doesn't work. There is no option to just use a file with no extension.
Of course I did. Wouldn't recommend it otherwise.Have you actually successfully made a XEBRA compatible memory card from a PS3 PSV save using your software, or are you just assuming it will work?