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Easy Street Draw diagram file (.esd)

.esd file signature | application/octet-stream

Easy Street Draw diagram file

Safe

Magic Bytes

Offset 0
4D 53 57 49 4D 00 00 00 D0 00 00 00 00

Sources: Wikipedia

All Known Signatures

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

Hex Signature Offset Sources
4D 53 57 49 4D 00 00 00 D0 00 00 00 00 0 Wikipedia
7E 45 53 44 77 F6 85 3E BF 6A D2 11 45 61 73 79 20 53 74 72 65 65 74 20 44 72 61 77 0 Gary Kessler

Extension

.esd

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .esd files in Python

Python 
def is_esd(file_path: str) -> bool:
    """Check if file is a valid ESD by magic bytes."""
    signature = bytes([0x4D, 0x53, 0x57, 0x49, 0x4D, 0x00, 0x00, 0x00, 0xD0, 0x00, 0x00, 0x00, 0x00])
    with open(file_path, "rb") as f:
        return f.read(13) == signature

How to validate .esd files in Node.js

Node.js 
function isESD(buffer: Buffer): boolean {
  const signature = Buffer.from([0x4D, 0x53, 0x57, 0x49, 0x4D, 0x00, 0x00, 0x00, 0xD0, 0x00, 0x00, 0x00, 0x00]);
  return buffer.subarray(0, 13).equals(signature);
}

How to validate .esd files in Go

Go 
func IsESD(data []byte) bool {
    signature := []byte{0x4D, 0x53, 0x57, 0x49, 0x4D, 0x00, 0x00, 0x00, 0xD0, 0x00, 0x00, 0x00, 0x00}
    if len(data) < 13 {
        return false
    }
    return bytes.Equal(data[:13], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .esd file?

A .esd file is a Easy Street Draw diagram file file. Easy Street Draw diagram file

What are the magic bytes for .esd files?

The magic bytes for Easy Street Draw diagram file files are 4D 53 57 49 4D 00 00 00 D0 00 00 00 00 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .esd file?

To validate a .esd file, read the first bytes of the file and compare them against the known magic bytes (4D 53 57 49 4D 00 00 00 D0 00 00 00 00) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .esd files?

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

Is it safe to open .esd files?

Easy Street Draw diagram file (.esd) 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.