NxOgre Tutorials mesh files

Hello,
I have been learning from NxOgre tutorials and I have encountered the tutorial with animation - ogre with sword - that uses sinbad files like :

1. sinbad.mesh[/*:m]
   
2. sinbad.blend[/*:m]
   
3. sinbad.skeleton[/*:m]
   
4. sinbad.material[/*:m]
   
5. and tga textures[/*:m][/list:u]
   
   And here my question arises: How can I :
   
   1. make such files with use of Maya ? [/*:m]
      
   2. how can I edit them (and make animations etc) ?[/*:m][/list:u]

Those are Ogre questions, they should be asked on the main forums. But I don't know the answers to either, because I don't have or use Maya.

I will ask there but nevertheless these are NxOgre tutorials