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An Object Linking and Embedding (.pps)

.pps file signature | application/vnd.ms-powerpoint

An Object Linking and Embedding (OLE) Compound File (CF) (i.e.,OLECF)file format, known asCompound Binary File formatby Microsoft, used byMicrosoft Office 97-2003 applications (Word, Powerpoint, Excel, Wizard). Part ofMicrosoft'sStructured Storage (MSS)architecture for Component Object Model (COM)-basedoperating systems.[See also Excel, Outlook, PowerPoint, and Word "subheaders" at byte offset 512 (0x200).]There appear to several subheader formats and a dearth of documentation.There have been re

Safe

Magic Bytes

Offset 0
D0 CF 11 E0 A1 B1 1A E1

Sources: Apache Tika, Gary Kessler

All Known Signatures

2 signature variants are documented for .pps files across multiple sources.

Hex Signature Offset Sources
D0 CF 11 E0 A1 B1 1A E1 0 Apache Tika, Gary Kessler
CF FA ED FE 0 Gary Kessler

Extension

.pps

MIME Type

application/vnd.ms-powerpoint

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .pps files in Python

Python 
def is_pps(file_path: str) -> bool:
    """Check if file is a valid PPS 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 .pps files in Node.js

Node.js 
function isPPS(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 .pps files in Go

Go 
func IsPPS(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/pps
curl https://filesignature.org/api/v1/pps

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .pps file?

A .pps file is a An Object Linking and Embedding file. An Object Linking and Embedding (OLE) Compound File (CF) (i.e.,OLECF)file format, known asCompound Binary File formatby Microsoft, used byMicrosoft Office 97-2003 applications (Word, Powerpoint, Excel, Wizard). Part ofMicrosoft'sStructured Storage (MSS)architecture for Component Object Model (COM)-basedoperating systems.[See also Excel, Outlook, PowerPoint, and Word "subheaders" at byte offset 512 (0x200).]There appear to several subheader formats and a dearth of documentation.There have been re

What are the magic bytes for .pps files?

The magic bytes for An Object Linking and Embedding 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 .pps file?

To validate a .pps 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 .pps files?

The primary MIME type for .pps files is application/vnd.ms-powerpoint.

Is it safe to open .pps files?

An Object Linking and Embedding (.pps) 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.