p2z and cr2 files come from Poser 3D character animation software and both are probably used for similar purpose. We do know that most formats from Poser can also be used in DAZ Studio, so perhaps this is a viable alternative how to achieve p2z to cr2 conversion as well. In either case, if you struggle with such export or conversion, it might be perhaps best to reach out to the Poser or DAZ Studio community.
Updated: August 23, 2023