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MSWorks text document (.wps)

.wps file signature | application/vnd.ms-works

Microsoft Works text document (WPS) is a word-processing file format created by Microsoft for the Works productivity suite. It was used to store letters, reports, simple manuscripts, and other basic documents in Microsoft Works and compatible office applications. The format is now considered legacy, and support in modern software is limited; opening files from untrusted sources should still be handled cautiously.

Safe

Magic Bytes

Offset 0
D0 CF 11 E0 A1 B1 1A E1

Sources: Apache Tika, Gary Kessler

Extension

.wps

MIME Type

application/vnd.ms-works

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .wps files in Python

Python 
def is_wps(file_path: str) -> bool:
    """Check if file is a valid WPS by magic bytes."""
    signature = bytes([0xD0, 0xCF, 0x11, 0xE0, 0xA1, 0xB1, 0x1A, 0xE1])
    with open(file_path, "rb") as f:
        return f.read(8) == signature

How to validate .wps files in Node.js

Node.js 
function isWPS(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 .wps files in Go

Go 
func IsWPS(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

GET /api/v1/wps
curl https://filesignature.org/api/v1/wps

See the full API documentation for all endpoints and parameters.

Related Formats

.odt .ott .rtf .wpd .doc .dot

Frequently Asked Questions

What is a .wps file?

A .wps file is a MSWorks text document file. Microsoft Works text document (WPS) is a word-processing file format created by Microsoft for the Works productivity suite. It was used to store letters, reports, simple manuscripts, and other basic documents in Microsoft Works and compatible office applications. The format is now considered legacy, and support in modern software is limited; opening files from untrusted sources should still be handled cautiously.

What are the magic bytes for .wps files?

The magic bytes for MSWorks text document 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 .wps file?

To validate a .wps 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 .wps files?

The primary MIME type for .wps files is application/vnd.ms-works.

Is it safe to open .wps files?

MSWorks text document (.wps) 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.