Wait, if this is a backup isn't it supposed to be encrypted?
You mean it has a passphrase? I suppose. But when I open the wallet I thought it was suppose to ask me for the passphrase so decrypt it? Or am I missing something?
Most of the wallets ask you for a password and a pin to encrypt the private keys, so you can store them in a USB memory (or even on Google Drive if your password is strong and you have a moderate amount of money).
When you use an external program to access the keys they will require the password or both the password and the pin (in the case of the Schildbach wallet)