I've been getting some edit requests for the spreadsheet, but it looks like plenty of folks here don't know about it
Attached is a downloadable xlsx file that should be a relatively complete list of codes for the PAL version, tested using Dolphin. All characters, class, level, exp, stats, items held, stats, etc on items held, skills in your skill slots, etc. The list is generated based on offsets
Note: a few of the characters and their columns are highlighted in the Char tab. If I recall correctly, this is due to each playthrough switching the offset that some of them use, so make sure to test those ones for your character if the listed one doesn't work. I suggest modifying the experience value in order to quickly verify this.
I haven't touched it in years, so if you ask me questions about it, I might not remember all the answers, but I'll try my best, within reason. Finding the specific thing for the other specific thing is up to you. Where stuff is in the file and how to use it? That you can ask.
I recommend taking the zip and using the file directly, as google drive is horribly slow and can screw with formatting, etc. Zip is both linked below on GDrive and attached directly to the post.
There are two versions: First, the original, which is also attached in a zip: https://docs.google.com/spreadsheets/d/1bgjtsTVe5Giu66MvARN7i915Yj8-INWy/edit?usp=sharing&ouid=100706173635800767882&rtpof=true&sd=true
the same but zipped, downloadable from GDrive https://drive.google.com/file/d/0B_cbkID_vCZeVXVWX2ZxenZHdjQ/view?usp=sharing&resourcekey=0-tyicLCZiDyQ4REorw4wlJw
Second one has been modified by other people. Not sure what they changed, aside from some formatting: https://docs.google.com/spreadsheets/d/0B_cbkID_vCZeeDRtSkg4MHZudlU/edit?usp=sharing&ouid=100706173635800767882&resourcekey=0-iwGYySdN94O4ouGyLf-Sqw&rtpof=true&sd=true
Codes and Info.zip