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PRT (.prt)

.prt file signature | application/x-prt

Safe

Magic Bytes

Offset 8
30 4D 33 43

Sources: Apache Tika

Extension

.prt

MIME Type

application/x-prt

Byte Offset

8

Risk Level

Safe

Validation Code

How to validate .prt files in Python

Python 
def is_prt(file_path: str) -> bool:
    """Check if file is a valid PRT by magic bytes."""
    signature = bytes([0x30, 0x4D, 0x33, 0x43])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .prt files in Node.js

Node.js 
function isPRT(buffer: Buffer): boolean {
  const signature = Buffer.from([0x30, 0x4D, 0x33, 0x43]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .prt files in Go

Go 
func IsPRT(data []byte) bool {
    signature := []byte{0x30, 0x4D, 0x33, 0x43}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

GET /api/v1/prt
curl https://filesignature.org/api/v1/prt

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .prt file?

A .prt file is a PRT file.

What are the magic bytes for .prt files?

The magic bytes for PRT files are 30 4D 33 43 at byte offset 8. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .prt file?

To validate a .prt file, read the first bytes of the file and compare them against the known magic bytes (30 4D 33 43) at offset 8. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .prt files?

The primary MIME type for .prt files is application/x-prt.

Is it safe to open .prt files?

PRT (.prt) 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.