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ICB (.icb)

.icb file signature | image/x-tga

Safe

Magic Bytes

Offset 1
01 01 00 00

Sources: Apache Tika

All Known Signatures

3 signature variants are documented for .icb files across multiple sources.

Hex Signature Offset Sources
01 01 00 00 1 Apache Tika
00 02 00 00 1 Apache Tika
00 03 00 00 1 Apache Tika

Extension

.icb

MIME Type

image/x-tga

Byte Offset

1

Risk Level

Safe

Validation Code

How to validate .icb files in Python

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

How to validate .icb files in Node.js

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

How to validate .icb files in Go

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

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .icb file?

A .icb file is a ICB file.

What are the magic bytes for .icb files?

The magic bytes for ICB files are 01 01 00 00 at byte offset 1. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .icb file?

To validate a .icb file, read the first bytes of the file and compare them against the known magic bytes (01 01 00 00) at offset 1. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .icb files?

The primary MIME type for .icb files is image/x-tga.

Is it safe to open .icb files?

ICB (.icb) 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.