WCM
application/vnd.ms-works
Magic Bytes
Offset: 0
D0 CF 11 E0 A1 B1 1A E1
Microsoft Works Communications (WCM) is a legacy file format developed by Microsoft as part of the Microsoft Works productivity suite. This format was primarily utilized to store terminal configuration settings and automated scripts for connecting to remote bulletin board systems or mainframe computers via analog modems. Although the format is now obsolete, it employs the Microsoft Compound File Binary Format structure and is generally regarded as a safe, low-risk data container for modern computing environments.
Validation Code
How to validate .wcm files in Python
def is_wcm(file_path: str) -> bool:
"""Check if file is a valid WCM by magic bytes."""
signature = bytes([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1])
with open(file_path, "rb") as f:
return f.read(8) == signatureHow to validate .wcm files in Node.js
function isWCM(buffer: Buffer): boolean {
const signature = Buffer.from([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1]);
return buffer.subarray(0, 8).equals(signature);
}How to validate .wcm files in Go
func IsWCM(data []byte) bool {
signature := []byte{0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1}
if len(data) < 8 {
return false
}
return bytes.Equal(data[:8], signature)
}API Endpoint
/api/v1/wcm
curl https://filesignature.org/api/v1/wcm
Related Formats
Frequently Asked Questions
What is a .wcm file?
A .wcm file is a WCM file. Microsoft Works Communications (WCM) is a legacy file format developed by Microsoft as part of the Microsoft Works productivity suite. This format was primarily utilized to store terminal configuration settings and automated scripts for connecting to remote bulletin board systems or mainframe computers via analog modems. Although the format is now obsolete, it employs the Microsoft Compound File Binary Format structure and is generally regarded as a safe, low-risk data container for modern computing environments.
What are the magic bytes for .wcm files?
The magic bytes for WCM files are D0 CF 11 E0 A1 B1 1A E1 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.
How do I validate a .wcm file?
To validate a .wcm file, read the first bytes of the file and compare them against the known magic bytes (D0 CF 11 E0 A1 B1 1A E1) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.
What is the MIME type for .wcm files?
The primary MIME type for .wcm files is application/vnd.ms-works.
Is it safe to open .wcm files?
WCM (.wcm) 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.