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SDA (.sda)

.sda file signature | application/vnd.stardivision.draw

SDA (StarOffice Draw) is a vector drawing file format developed by Star Division for the StarOffice suite and later associated with Sun Microsystems and LibreOffice support. It is used for diagrams, illustrations, technical drawings, and other page-based graphics created or edited in compatible office and drawing applications. The format is largely legacy, and while files are generally safe to open, older documents may require compatibility tools or conversion in modern software.

Safe

Magic Bytes

Offset 0
D0 CF 11 E0 A1 B1 1A E1

Sources: Apache Tika

Extension

.sda

MIME Type

application/vnd.stardivision.draw

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .sda files in Python

Python 
def is_sda(file_path: str) -> bool:
    """Check if file is a valid SDA by magic bytes."""
    signature = bytes([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1])
    with open(file_path, "rb") as f:
        return f.read(8) == signature

How to validate .sda files in Node.js

Node.js 
function isSDA(buffer: Buffer): boolean {
  const signature = Buffer.from([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1]);
  return buffer.subarray(0, 8).equals(signature);
}

How to validate .sda files in Go

Go 
func IsSDA(data []byte) bool {
    signature := []byte{0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1}
    if len(data) < 8 {
        return false
    }
    return bytes.Equal(data[:8], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .sda file?

A .sda file is identified by the magic bytes D0 CF 11 E0 A1 B1 1A E1 at byte offset 0. SDA (StarOffice Draw) is a vector drawing file format developed by Star Division for the StarOffice suite and later associated with Sun Microsystems and LibreOffice support. It is used for diagrams, illustrations, technical drawings, and other page-based graphics created or edited in compatible office and drawing applications. The format is largely legacy, and while files are generally safe to open, older documents may require compatibility tools or conversion in modern software.

What are the magic bytes for .sda files?

The magic bytes for SDA files are D0 CF 11 E0 A1 B1 1A E1 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .sda file?

To validate a .sda file, read the first bytes of the file and compare them against the known magic bytes (D0 CF 11 E0 A1 B1 1A E1) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .sda files?

The primary MIME type for .sda files is application/vnd.stardivision.draw.

Is it safe to open .sda files?

SDA (.sda) 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.