Importing, Exporting, Encryption

Help states "Please note: Backup files are not encrypted, nor do they hold your lock code so it is important you keep this file safe and secure. For this reason, we recommend deleting the backup file from your device after transferring it to your computer."

I want to be able to add to momento outside the app, and seeing as it'll take you guys a long time to come up with an app for windows/mac that'll sync with the iPhone, there's another way.

When I download the backup file to my windows computer and try and edit it in notepad, all the text is all garbled. If this isn't encryption, what is it? Just not raw text? Can you provide us with a small app that'll convert this to text, or point us in the right direction?

End game, I want to be able to add momentos into this file as if it were a raw text file, and then place it back on the iPhone and restore from it therefore giving me something I wrote on my computer (great for longer moments).

Alternitively, can you give us the ability to import from an exported RAR? As these ARE just raw text files, I could add my own in the same format and style and then import from my computer.