Psion Series 3 Database file (.dbf)

.dbf file signature | application/octet-stream

Psion Series 3 Database file

Safe

Magic Bytes

Offset 0


              4F 50 4C 44 61 74 61 62 61 73 65 46 69 6C 65

Sources: Gary Kessler

Extension

.dbf

MIME Type

application/octet-stream

Byte Offset

Risk Level

Safe

Validation Code

How to validate .dbf files in Python

Python

def is_dbf(file_path: str) -> bool:
    """Check if file is a valid DBF by magic bytes."""
    signature = bytes([0x4F, 0x50, 0x4C, 0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x46, 0x69, 0x6C, 0x65])
    with open(file_path, "rb") as f:
        return f.read(15) == signature

How to validate .dbf files in Node.js

Node.js

function isDBF(buffer: Buffer): boolean {
  const signature = Buffer.from([0x4F, 0x50, 0x4C, 0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x46, 0x69, 0x6C, 0x65]);
  return buffer.subarray(0, 15).equals(signature);
}

How to validate .dbf files in Go

func IsDBF(data []byte) bool {
    signature := []byte{0x4F, 0x50, 0x4C, 0x44, 0x61, 0x74, 0x61, 0x62, 0x61, 0x73, 0x65, 0x46, 0x69, 0x6C, 0x65}
    if len(data) < 15 {
        return false
    }
    return bytes.Equal(data[:15], signature)
}

API Endpoint

GET /api/v1/dbf


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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .dbf file?

A .dbf file is a Psion Series 3 Database file file. Psion Series 3 Database file

What are the magic bytes for .dbf files?

The magic bytes for Psion Series 3 Database file files are 4F 50 4C 44 61 74 61 62 61 73 65 46 69 6C 65 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .dbf file?

To validate a .dbf file, read the first bytes of the file and compare them against the known magic bytes (4F 50 4C 44 61 74 61 62 61 73 65 46 69 6C 65) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .dbf files?

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

Is it safe to open .dbf files?

Psion Series 3 Database file (.dbf) 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.