USDC (USD Compressed) is a variant of the USD (Universal Scene Description) format, specifically designed to reduce file sizes while maintaining the same capabilities and functionality as the standard USD format. It achieves this by compressing the data, making it more efficient for storage and transmission.

USDC offers a practical solution for managing large and complex 3D scenes by reducing file sizes without compromising functionality, making it a valuable tool in modern 3D content creation and management.