I thought that Spriter outputed the frames of animation as separate images. Does it import the entire bone animation into the program and just rotate the images? I might need to better research it.
For sure in parts, you can export the entire robot, for example, like a GIF animation, or, export each part and mount inside the C2, but you'll be able to bone them only when Spriter plugin get read.
Search for Spriter plugin and you'll know what I'm talking about.