I forgot to ask: what's the data and what will it be used for? That goes a long way towards figuring out the best way to represent it.
edit: odd, I posted to the thread twice, but the first one said it needed moderator approval (presumably because I had links in it).
If it takes a while for the approval to happen, try the following google search phrases:
"android notepad tutorial": this is a sample app from Google that is a good way to learn about creating and using a database in android.
"android data storage": One of the first links should be to the android developers website and give a rundown of the various data storage methods including databases, shared preferences, and file storage.
"Working with XML on Android" one of the first links should be to an article on ibm.com with a great explanation of how to create, parse, and modify XML files using Java on Android.