WP61
application/vnd.wordperfect
Magic Bytes
Offset: 0
61 70 70 6C 69 63 61 74 69 6F 6E 2F 76 6E 64 2E 77 6F 72 64 70 65 72 66 65 63 74 3B
WordPerfect 6.1 (WP61) is a legacy word processing document format originally developed by Novell and currently maintained by Corel. It serves as a container for rich text, mathematical formulas, and complex tables primarily used for legal and administrative documentation. This obsolete binary format is now mainly encountered in digital archival contexts and is considered safe due to its lack of modern macro execution capabilities.
Validation Code
How to validate .wp61 files in Python
Python
def is_wp61(file_path: str) -> bool:
"""Check if file is a valid WP61 by magic bytes."""
signature = bytes([0x61, 0x70, 0x70, 0x6C, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x2F, 0x76, 0x6E, 0x64, 0x2E, 0x77, 0x6F, 0x72, 0x64, 0x70, 0x65, 0x72, 0x66, 0x65, 0x63, 0x74, 0x3B])
with open(file_path, "rb") as f:
return f.read(28) == signatureHow to validate .wp61 files in Node.js
Node.js
function isWP61(buffer: Buffer): boolean {
const signature = Buffer.from([0x61, 0x70, 0x70, 0x6C, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x2F, 0x76, 0x6E, 0x64, 0x2E, 0x77, 0x6F, 0x72, 0x64, 0x70, 0x65, 0x72, 0x66, 0x65, 0x63, 0x74, 0x3B]);
return buffer.subarray(0, 28).equals(signature);
}
Go
func IsWP61(data []byte) bool {
signature := []byte{0x61, 0x70, 0x70, 0x6C, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6F, 0x6E, 0x2F, 0x76, 0x6E, 0x64, 0x2E, 0x77, 0x6F, 0x72, 0x64, 0x70, 0x65, 0x72, 0x66, 0x65, 0x63, 0x74, 0x3B}
if len(data) < 28 {
return false
}
return bytes.Equal(data[:28], signature)
}API Endpoint
GET
/api/v1/wp61
curl https://filesignature.org/api/v1/wp61