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HFA (.hfa)

.hfa file signature | application/x-erdas-hfa

Safe

Magic Bytes

Offset 0
45 48 46 41 5F 48 45 41 44 45 52 5F 54 41 47

Sources: Apache Tika

Extension

.hfa

MIME Type

application/x-erdas-hfa

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .hfa files in Python

Python 
def is_hfa(file_path: str) -> bool:
    """Check if file is a valid HFA by magic bytes."""
    signature = bytes([0x45, 0x48, 0x46, 0x41, 0x5F, 0x48, 0x45, 0x41, 0x44, 0x45, 0x52, 0x5F, 0x54, 0x41, 0x47])
    with open(file_path, "rb") as f:
        return f.read(15) == signature

How to validate .hfa files in Node.js

Node.js 
function isHFA(buffer: Buffer): boolean {
  const signature = Buffer.from([0x45, 0x48, 0x46, 0x41, 0x5F, 0x48, 0x45, 0x41, 0x44, 0x45, 0x52, 0x5F, 0x54, 0x41, 0x47]);
  return buffer.subarray(0, 15).equals(signature);
}

How to validate .hfa files in Go

Go 
func IsHFA(data []byte) bool {
    signature := []byte{0x45, 0x48, 0x46, 0x41, 0x5F, 0x48, 0x45, 0x41, 0x44, 0x45, 0x52, 0x5F, 0x54, 0x41, 0x47}
    if len(data) < 15 {
        return false
    }
    return bytes.Equal(data[:15], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .hfa file?

A .hfa file is a HFA file.

What are the magic bytes for .hfa files?

The magic bytes for HFA files are 45 48 46 41 5F 48 45 41 44 45 52 5F 54 41 47 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .hfa file?

To validate a .hfa file, read the first bytes of the file and compare them against the known magic bytes (45 48 46 41 5F 48 45 41 44 45 52 5F 54 41 47) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .hfa files?

The primary MIME type for .hfa files is application/x-erdas-hfa.

Is it safe to open .hfa files?

HFA (.hfa) 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.