With Filestar you get 0 different skills for working productively with XNALara / XPS Pose (.pose) files.
About .Pose
Name
XNALara / XPS Pose
Extension
.pose
Format
Text
Category
3D
Description
Bone-pose text file of the XNALara / XPS posing tools: one line per bone of a model, each with the bone's rotation, position offset and scale. It holds no geometry of its own; Filestar converts it by applying the pose to a matching XNALara / XPS model beside it.