Select the Import-Export category from the list on the left side of the screen, and then click on the button Install from file.A window like the one shown in the picture Blender User Preferences will pop up. In Blender, select the menu option File -> User preferences.Download the compressed file containing the nif plugin anywhere you want (remember where it is, though).The process for installing the Nif Plugin in Blender 2.7x has changed from the one used to install plugins in version 2.49.Take into account that this is not a official release but that it is still under development. Then you should install the Blender Nif Plugin 2.6.0a0.dev4. Important: If you want to use a newer version of Blender, don't use version 2.76b, as the copy weights between meshes doesn't work properly.You can use the old and stable Blender version 2.49, and follow the instructions given here: Installation of Blender to install everything you need.Blender: Main tool used for creating the meshes, assigning weights and creating the UV maps.

Outfit Studio wrong possitions of the Cloth bones