USDZ
application/octet-stream
Magic Bytes
Offset: 0
50 4B 03 04 50 4B 05 06 50 4B 07 08
Universal Scene Description Zipped (USDZ) is an uncompressed ZIP archive format developed by Pixar in collaboration with Apple for 3D data. It is primarily utilized for sharing high-fidelity 3D assets and augmented reality experiences across mobile devices and web platforms. As an uncompressed container for Universal Scene Description files, it presents minimal security risks, although users should verify assets used in untrusted environments to prevent potential data exploitation or rendering issues.
Validation Code
How to validate .usdz files in Python
def is_usdz(file_path: str) -> bool:
"""Check if file is a valid USDZ by magic bytes."""
signature = bytes([0x50, 0x4B, 0x03, 0x04, 0x50, 0x4B, 0x05, 0x06, 0x50, 0x4B, 0x07, 0x08])
with open(file_path, "rb") as f:
return f.read(12) == signatureHow to validate .usdz files in Node.js
function isUSDZ(buffer: Buffer): boolean {
const signature = Buffer.from([0x50, 0x4B, 0x03, 0x04, 0x50, 0x4B, 0x05, 0x06, 0x50, 0x4B, 0x07, 0x08]);
return buffer.subarray(0, 12).equals(signature);
}How to validate .usdz files in Go
func IsUSDZ(data []byte) bool {
signature := []byte{0x50, 0x4B, 0x03, 0x04, 0x50, 0x4B, 0x05, 0x06, 0x50, 0x4B, 0x07, 0x08}
if len(data) < 12 {
return false
}
return bytes.Equal(data[:12], signature)
}API Endpoint
/api/v1/usdz
curl https://filesignature.org/api/v1/usdz
Related Formats
Frequently Asked Questions
What is a .usdz file?
A .usdz file is a USDZ file. Universal Scene Description Zipped (USDZ) is an uncompressed ZIP archive format developed by Pixar in collaboration with Apple for 3D data. It is primarily utilized for sharing high-fidelity 3D assets and augmented reality experiences across mobile devices and web platforms. As an uncompressed container for Universal Scene Description files, it presents minimal security risks, although users should verify assets used in untrusted environments to prevent potential data exploitation or rendering issues.
What are the magic bytes for .usdz files?
The magic bytes for USDZ files are 50 4B 03 04 50 4B 05 06 50 4B 07 08 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .usdz file?
To validate a .usdz file, read the first bytes of the file and compare them against the known magic bytes (50 4B 03 04 50 4B 05 06 50 4B 07 08) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .usdz files?
The primary MIME type for .usdz files is application/octet-stream.
Is it safe to open .usdz files?
USDZ (.usdz) files are generally safe to open. They are classified as low risk because they primarily contain data rather than executable code. However, always ensure files come from a trusted source.