SDC (.sdc)
.sdc file signature | application/vnd.stardivision.calc
Magic Bytes
Offset 0
D0 CF 11 E0 A1 B1 1A E1
Sources: Apache Tika
Extension
.sdc
MIME Type
application/vnd.stardivision.calc
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .sdc files in Python
def is_sdc(file_path: str) -> bool:
"""Check if file is a valid SDC by magic bytes."""
signature = bytes([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .sdc files in Node.js
function isSDC(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 .sdc files in Go
func IsSDC(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
/api/v1/sdc
curl https://filesignature.org/api/v1/sdc
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .sdc file?
A .sdc file is a SDC file.
What are the magic bytes for .sdc files?
The magic bytes for SDC 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 .sdc file?
To validate a .sdc 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 .sdc files?
The primary MIME type for .sdc files is application/vnd.stardivision.calc.
Is it safe to open .sdc files?
SDC (.sdc) 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.