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P00 (.p00)

.p00 file signature | application/octet-stream

Commodore 64binary file (source:*.P00 format for Power64 emulator)

Safe

Magic Bytes

Offset 0
43 36 34 46 69 6C 65 00

Sources: Wikipedia

Extension

.p00

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .p00 files in Python

Python
def is_p00(file_path: str) -> bool:
    """Check if file is a valid P00 by magic bytes."""
    signature = bytes([0x43, 0x36, 0x34, 0x46, 0x69, 0x6C, 0x65, 0x00])
    with open(file_path, "rb") as f:
        return f.read(8) == signature

How to validate .p00 files in Node.js

Node.js
function isP00(buffer: Buffer): boolean {
  const signature = Buffer.from([0x43, 0x36, 0x34, 0x46, 0x69, 0x6C, 0x65, 0x00]);
  return buffer.subarray(0, 8).equals(signature);
}

How to validate .p00 files in Go

Go
func IsP00(data []byte) bool {
    signature := []byte{0x43, 0x36, 0x34, 0x46, 0x69, 0x6C, 0x65, 0x00}
    if len(data) < 8 {
        return false
    }
    return bytes.Equal(data[:8], signature)
}

API Endpoint

GET /api/v1/p00
curl https://filesignature.org/api/v1/p00

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .p00 file?

A .p00 file is a P00 file. Commodore 64binary file (source:*.P00 format for Power64 emulator)

What are the magic bytes for .p00 files?

The magic bytes for P00 files are 43 36 34 46 69 6C 65 00 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .p00 file?

To validate a .p00 file, read the first bytes of the file and compare them against the known magic bytes (43 36 34 46 69 6C 65 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 .p00 files?

There is no officially registered MIME type for .p00 files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .p00 files?

P00 (.p00) 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.