Self explanatory, animations are already made as well as the actual mesh itself
So I'm just not going to wait for a response, and answer both those questions instead.
Exporting the character into a mesh: Right click the character model in the explorer and click the option "Export Selection", it will export the model as a obj file, effectively turning the player model into a mesh.
Turning the parts of the character into meshes: You can either swap out the parts of a default character with mesh parts and upload their respective meshes into them, or an even easier solution would be to use the rig importer and it will take an FBX file and generate a character model with all the motor6Ds and attachments in it for you.