The "Noah's ark" is a software that helps you creating the creatures raw. The objective of this sofware is to help you doing all the boring writing part of modding making you work faster. Unfortunately, i'm not a creature modder, so need to "study" the raw of the creatures. The program works like this at the moment:
You select a template or start with a blank template (Also random)
The software creates the basic name and description in the raw
Now you can add the tokens to the raw by selecting them in the Helper window
You can simply edit the newraw by pressing ctrl+i/e/r/space (insert/delete/replace/blankline)
You can select the skeleton of the creature the type of attack and more variables by selecting them.
Now save the creature and put it in the raw folder.

I'm not going to upload it right now because it really needs a lot of bugfixing.
If you want to help i'd like to know if you usually use a particular template to start a new creature, which token you use more and other useful things you can tell me about creature modding.
If you want to know more:http://digitalbanana.blogspot.com/ or http://www.bay12forums.com/smf/index.php?topic=82101.0