Lotus AMI Pro document magic bytes (.sam)
.sam file signature: 5B 56 45 52 5D | application/octet-stream
Category: Office
Lotus AMI Pro document files are a word-processing format developed by Lotus Development Corporation and later supported by IBM after its acquisition of Lotus. They were used for creating and editing formatted text documents, business reports, letters, and other office materials in Lotus AMI Pro. This is a legacy format associated with older software; files from untrusted sources should be opened with caution, although the format is generally considered safe.
Magic Bytes
Offset 0
5B 56 45 52 5D
Sources: Gary Kessler
All Known Signatures
2 signature variants are documented for .sam files across multiple sources.
| Hex Signature | Offset | Sources |
|---|---|---|
| 5B 56 45 52 5D | 0 | Gary Kessler |
| 5B 76 65 72 5D | 0 | Gary Kessler |
Validation Code
How to validate .sam files in Python
def is_sam(file_path: str) -> bool:
"""Check if file is a valid SAM by magic bytes."""
signature = bytes([0x5B, 0x56, 0x45, 0x52, 0x5D])
with open(file_path, "rb") as f:
return f.read(5) == signatureHow to validate .sam files in Node.js
function isSAM(buffer: Buffer): boolean {
const signature = Buffer.from([0x5B, 0x56, 0x45, 0x52, 0x5D]);
return buffer.subarray(0, 5).equals(signature);
}How to validate .sam files in Go
func IsSAM(data []byte) bool {
signature := []byte{0x5B, 0x56, 0x45, 0x52, 0x5D}
if len(data) < 5 {
return false
}
return bytes.Equal(data[:5], signature)
}API Endpoint
/api/v1/sam
curl https://filesignature.org/api/v1/sam
See the full API documentation for all endpoints and parameters.
Related Formats
Frequently Asked Questions
What is a .sam file?
A .sam file is a Lotus AMI Pro document. Lotus AMI Pro document files are a word-processing format developed by Lotus Development Corporation and later supported by IBM after its acquisition of Lotus. They were used for creating and editing formatted text documents, business reports, letters, and other office materials in Lotus AMI Pro. This is a legacy format associated with older software; files from untrusted sources should be opened with caution, although the format is generally considered safe.
What are the magic bytes for .sam files?
The magic bytes for Lotus AMI Pro document (.sam) files are 5B 56 45 52 5D at byte offset 0. These bytes identify the file format more reliably than the extension alone.
How do I validate a .sam file?
To validate a .sam file, read the first bytes of the file and compare them against the known magic bytes (5B 56 45 52 5D) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .sam files?
There is no officially registered MIME type for .sam files. Systems typically use application/octet-stream as a generic fallback when handling this format.
Is it safe to open .sam files?
Lotus AMI Pro document (.sam) 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.