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• universal CLO file viewer
• May 19, 2026

A CLO file is most often understood as a file related to CLO 3D, which is software used in fashion and apparel design to create garments digitally, but the more precise point is that CLO’s current native formats are `.zprj` for project files and `.zpac` for garment files, not usually `.clo`. A `.zprj` project can bundle avatar data, garment data, …