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Palmpilot resource file (.prc)

.prc file signature | application/x-mobipocket-ebook

PathWay Map file, used with GPS devices

Safe

Magic Bytes

Offset 0
42 4F 4F 4B 4D 4F 42 49

Sources: Apache Tika, Gary Kessler

All Known Signatures

2 signature variants are documented for .prc files across multiple sources.

Hex Signature Offset Sources
42 4F 4F 4B 4D 4F 42 49 0 Apache Tika, Gary Kessler
60 3C BE FF E7 42 4D 50 4B 6E 57 72 0 Gary Kessler

Extension

.prc

MIME Type

application/x-mobipocket-ebook

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .prc files in Python

Python
def is_prc(file_path: str) -> bool:
    """Check if file is a valid PRC by magic bytes."""
    signature = bytes([0x42, 0x4F, 0x4F, 0x4B, 0x4D, 0x4F, 0x42, 0x49])
    with open(file_path, "rb") as f:
        return f.read(8) == signature

How to validate .prc files in Node.js

Node.js
function isPRC(buffer: Buffer): boolean {
  const signature = Buffer.from([0x42, 0x4F, 0x4F, 0x4B, 0x4D, 0x4F, 0x42, 0x49]);
  return buffer.subarray(0, 8).equals(signature);
}

How to validate .prc files in Go

Go
func IsPRC(data []byte) bool {
    signature := []byte{0x42, 0x4F, 0x4F, 0x4B, 0x4D, 0x4F, 0x42, 0x49}
    if len(data) < 8 {
        return false
    }
    return bytes.Equal(data[:8], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .prc file?

A .prc file is a Palmpilot resource file file. PathWay Map file, used with GPS devices

What are the magic bytes for .prc files?

The magic bytes for Palmpilot resource file files are 42 4F 4F 4B 4D 4F 42 49 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .prc file?

To validate a .prc file, read the first bytes of the file and compare them against the known magic bytes (42 4F 4F 4B 4D 4F 42 49) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .prc files?

The primary MIME type for .prc files is application/x-mobipocket-ebook.

Is it safe to open .prc files?

Palmpilot resource file (.prc) 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.