SmartDraw Drawing file (.sdr)
.sdr file signature | application/octet-stream
The SmartDraw Drawing file is a proprietary diagram format developed and maintained by SmartDraw Software. It is used for flowcharts, organizational charts, mind maps, floor plans, and other business or technical illustrations created in SmartDraw applications. The format is generally considered safe, though files from untrusted sources should still be scanned and opened in current software to avoid compatibility issues.
Magic Bytes
Offset 0
53 4D 41 52 54 44 52 57
Sources: Gary Kessler
Extension
.sdr
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .sdr files in Python
def is_sdr(file_path: str) -> bool:
"""Check if file is a valid SDR by magic bytes."""
signature = bytes([0x53, 0x4D, 0x41, 0x52, 0x54, 0x44, 0x52, 0x57])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .sdr files in Node.js
function isSDR(buffer: Buffer): boolean {
const signature = Buffer.from([0x53, 0x4D, 0x41, 0x52, 0x54, 0x44, 0x52, 0x57]);
return buffer.subarray(0, 8).equals(signature);
}How to validate .sdr files in Go
func IsSDR(data []byte) bool {
signature := []byte{0x53, 0x4D, 0x41, 0x52, 0x54, 0x44, 0x52, 0x57}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
/api/v1/sdr
curl https://filesignature.org/api/v1/sdr
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .sdr file?
A .sdr file is a SmartDraw Drawing file file. The SmartDraw Drawing file is a proprietary diagram format developed and maintained by SmartDraw Software. It is used for flowcharts, organizational charts, mind maps, floor plans, and other business or technical illustrations created in SmartDraw applications. The format is generally considered safe, though files from untrusted sources should still be scanned and opened in current software to avoid compatibility issues.
What are the magic bytes for .sdr files?
The magic bytes for SmartDraw Drawing file files are 53 4D 41 52 54 44 52 57 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .sdr file?
To validate a .sdr file, read the first bytes of the file and compare them against the known magic bytes (53 4D 41 52 54 44 52 57) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .sdr files?
There is no officially registered MIME type for .sdr files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .sdr files?
SmartDraw Drawing file (.sdr) 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.