Open Source License and Credits

Copyright ©2003-2020 Linden Research, Inc. Licensed under Creative Commons Attribution-Share Alike 3.0 unless otherwise noted.
https://creativecommons.org/licenses/by/3.0/
https://community.secondlife.com/forums/topic/34082-avatar-model-and-clothing-files-now-have-an-updated-license/

avatar_skeleton.xml
https://bitbucket.org/lindenlab/viewer-release

Skeleton.Female.blend
Skeleton.Male.blend
 http://wiki.secondlife.com/wiki/Mesh/Rigging_Fitted_Mesh

female_2016_08_05.dae
male_2016_08_05.dae
angel_2016_08_05
  http://wiki.secondlife.com/wiki/Project_Bento_Testing

bvh files
http://wiki.secondlife.com/wiki/Internal_Animations