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Calculux Indoor lighting design software project file (.cin)

.cin file signature | application/octet-stream

Calculux Indoor lighting design software project file

Safe

Magic Bytes

Offset 0
80 2A 5F D7

Sources: Wikipedia, Gary Kessler

All Known Signatures

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

Hex Signature Offset Sources
80 2A 5F D7 0 Wikipedia, Gary Kessler
43 61 6C 63 75 6C 75 78 20 49 6E 64 6F 6F 72 20 0 Gary Kessler

Extension

.cin

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .cin files in Python

Python
def is_cin(file_path: str) -> bool:
    """Check if file is a valid CIN by magic bytes."""
    signature = bytes([0x80, 0x2A, 0x5F, 0xD7])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .cin files in Node.js

Node.js
function isCIN(buffer: Buffer): boolean {
  const signature = Buffer.from([0x80, 0x2A, 0x5F, 0xD7]);
  return buffer.subarray(0, 4).equals(signature);
}

How to validate .cin files in Go

Go
func IsCIN(data []byte) bool {
    signature := []byte{0x80, 0x2A, 0x5F, 0xD7}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .cin file?

A .cin file is a Calculux Indoor lighting design software project file file. Calculux Indoor lighting design software project file

What are the magic bytes for .cin files?

The magic bytes for Calculux Indoor lighting design software project file files are 80 2A 5F D7 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .cin file?

To validate a .cin file, read the first bytes of the file and compare them against the known magic bytes (80 2A 5F D7) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .cin files?

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

Is it safe to open .cin files?

Calculux Indoor lighting design software project file (.cin) 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.