Hi,

I would like to create my own data format for an iPhone app. The files should be similar structured as e.g. Apple's iWork files (.pages). That means, I have a folder with some files in it:

The file 'Juicy.fruit' contains:
   Fruits
   ---> Apple.xml
   ---> Banana.xml
   ---> Pear.xml
   ---> PreviewPicture.png

This folder "Fruits" should be packed in a handy file 'Juicy.fruit'. Compression isn't necessary. How could I achieve this? I've discovered some open source ZIP-libraries. However, I would like to to build my own data format with the iPhones built-in libs (if possible).

Best regards, Stefan