Lotus WordPro document
application/vnd.lotus-wordpro
Magic Bytes
Offset: 0
57 6F 72 64 50 72 6F 00
The Lotus Word Pro document is a proprietary file format developed by Lotus Software, a subsidiary of IBM, for the Word Pro word processing application. It was historically utilized for creating business documents, reports, and formatted text within the Lotus SmartSuite ecosystem. As a legacy format associated with software discontinued in the 2010s, it is rarely generated today and typically requires specific conversion tools or legacy viewers to open on modern systems.
Validation Code
How to validate .lwp files in Python
Python
def is_lwp(file_path: str) -> bool:
"""Check if file is a valid LWP by magic bytes."""
signature = bytes([0x57, 0x6F, 0x72, 0x64, 0x50, 0x72, 0x6F, 0x00])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .lwp files in Node.js
Node.js
function isLWP(buffer: Buffer): boolean {
const signature = Buffer.from([0x57, 0x6F, 0x72, 0x64, 0x50, 0x72, 0x6F, 0x00]);
return buffer.subarray(0, 8).equals(signature);
}
Go
func IsLWP(data []byte) bool {
signature := []byte{0x57, 0x6F, 0x72, 0x64, 0x50, 0x72, 0x6F, 0x00}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
GET
/api/v1/lwp
curl https://filesignature.org/api/v1/lwp