Lotus AMI Pro document
application/octet-stream
Magic Bytes
Offset: 0
5B 56 4D 44 5D
Lotus AMI Pro document (SAM) is a legacy word processing format originally developed by Samna Corporation and later maintained by Lotus Development Corporation. It served as the primary file type for the AMI Pro office suite, facilitating complex document layout and text editing during the early Windows era. Although now obsolete, this format is considered safe due to its lack of complex macro execution capabilities common in modern productivity software.
Validation Code
How to validate .sam files in Python
Python
def is_sam(file_path: str) -> bool:
"""Check if file is a valid SAM by magic bytes."""
signature = bytes([0x5B, 0x56, 0x4D, 0x44, 0x5D])
with open(file_path, "rb") as f:
return f.read(5) == signatureHow to validate .sam files in Node.js
Node.js
function isSAM(buffer: Buffer): boolean {
const signature = Buffer.from([0x5B, 0x56, 0x4D, 0x44, 0x5D]);
return buffer.subarray(0, 5).equals(signature);
}
Go
func IsSAM(data []byte) bool {
signature := []byte{0x5B, 0x56, 0x4D, 0x44, 0x5D}
if len(data) < 5 {
return false
}
return bytes.Equal(data[:5], signature)
}API Endpoint
GET
/api/v1/sam
curl https://filesignature.org/api/v1/sam