This is a little project we’ve been working on.
It’s essentially a universal software wallet. The QR code in your file (imagewallet) stores a randomly generated value. This value is used to derive your blockchain specific wallets using well-established standard.
With it you can derive wallets for pretty much any network.
The application (https://imagewallet.io) currently support Ethereum, Bitcoin and the Nimiq blockchain. More to be added soon.
It’s all open-source, have a look at:
What do you think?