SMUS (.smus)
.smus file signature | application/octet-stream
SMUS (Simple Musical Score) is an Interchange File Format musical score format originally created for Electronic Arts’ Amiga software and defined within the IFF family of specifications. It was used to store song data, note events, and sequencing information for playback in music and multimedia applications. The format is largely historical and uncommon today; as with other legacy media files, untrusted files should be opened with standard caution, though it is generally considered safe.
Magic Bytes
Offset 0
46 4F 52 4D
Sources: Wikipedia
All Known Signatures
2 signature variants are documented for .smus files across multiple sources.
Extension
.smus
MIME Type
application/octet-stream
Byte Offset
0
Risk Level
Safe
Validation Code
How to validate .smus files in Python
def is_smus(file_path: str) -> bool:
"""Check if file is a valid SMUS by magic bytes."""
signature = bytes([0x46, 0x4F, 0x52, 0x4D])
with open(file_path, "rb") as f:
return f.read(4) == signatureHow to validate .smus files in Node.js
function isSMUS(buffer: Buffer): boolean {
const signature = Buffer.from([0x46, 0x4F, 0x52, 0x4D]);
return buffer.subarray(0, 4).equals(signature);
}How to validate .smus files in Go
func IsSMUS(data []byte) bool {
signature := []byte{0x46, 0x4F, 0x52, 0x4D}
if len(data) < 4 {
return false
}
return bytes.Equal(data[:4], signature)
}API Endpoint
/api/v1/smus
curl https://filesignature.org/api/v1/smus
See the full API documentation for all endpoints and parameters.
Frequently Asked Questions
What is a .smus file?
A .smus file is identified by the magic bytes 46 4F 52 4D at byte offset 0. SMUS (Simple Musical Score) is an Interchange File Format musical score format originally created for Electronic Arts’ Amiga software and defined within the IFF family of specifications. It was used to store song data, note events, and sequencing information for playback in music and multimedia applications. The format is largely historical and uncommon today; as with other legacy media files, untrusted files should be opened with standard caution, though it is generally considered safe.
What are the magic bytes for .smus files?
The magic bytes for SMUS files are 46 4F 52 4D at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .smus file?
To validate a .smus file, read the first bytes of the file and compare them against the known magic bytes (46 4F 52 4D) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .smus files?
There is no officially registered MIME type for .smus files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .smus files?
SMUS (.smus) 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.