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ORF (.orf)

.orf file signature | image/x-raw-olympus

Safe

Magic Bytes

Offset 0
49 49 52 4F

Sources: Apache Tika

Extension

.orf

MIME Type

image/x-raw-olympus

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .orf files in Python

Python
def is_orf(file_path: str) -> bool:
    """Check if file is a valid ORF by magic bytes."""
    signature = bytes([0x49, 0x49, 0x52, 0x4F])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .orf files in Node.js

Node.js
function isORF(buffer: Buffer): boolean {
  const signature = Buffer.from([0x49, 0x49, 0x52, 0x4F]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .orf files in Go

Go
func IsORF(data []byte) bool {
    signature := []byte{0x49, 0x49, 0x52, 0x4F}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .orf file?

A .orf file is a ORF file.

What are the magic bytes for .orf files?

The magic bytes for ORF files are 49 49 52 4F at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .orf file?

To validate a .orf file, read the first bytes of the file and compare them against the known magic bytes (49 49 52 4F) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .orf files?

The primary MIME type for .orf files is image/x-raw-olympus.

Is it safe to open .orf files?

ORF (.orf) 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.