Webex Advanced Recording Format files (.arf)

.arf file signature | application/octet-stream

Webex Advanced Recording Format files.

Safe

Magic Bytes

Offset 0


              01 00 02 00

Sources: Gary Kessler

Extension

.arf

MIME Type

application/octet-stream

Byte Offset

Risk Level

Safe

Validation Code

How to validate .arf files in Python

Python

def is_arf(file_path: str) -> bool:
    """Check if file is a valid ARF by magic bytes."""
    signature = bytes([0x01, 0x00, 0x02, 0x00])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .arf files in Node.js

Node.js

function isARF(buffer: Buffer): boolean {
  const signature = Buffer.from([0x01, 0x00, 0x02, 0x00]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .arf files in Go

func IsARF(data []byte) bool {
    signature := []byte{0x01, 0x00, 0x02, 0x00}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

GET /api/v1/arf


              curl https://filesignature.org/api/v1/arf

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .arf file?

A .arf file is a Webex Advanced Recording Format files file. Webex Advanced Recording Format files.

What are the magic bytes for .arf files?

The magic bytes for Webex Advanced Recording Format files files are 01 00 02 00 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .arf file?

To validate a .arf file, read the first bytes of the file and compare them against the known magic bytes (01 00 02 00) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .arf files?

There is no officially registered MIME type for .arf files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .arf files?

Webex Advanced Recording Format files (.arf) 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.