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SHR (.shr)

.shr file signature | application/octet-stream

SHR is a legacy multimedia file format developed by Corel for the Corel SHOW! 5.0 player. It was used to store slide shows and presentation sequences for playback in the associated viewer. As an older proprietary format, it is generally considered safe to open, though support may be limited in modern software and files should still be obtained from trusted sources.

Safe

Magic Bytes

Offset 0
52 49 46 46 73 68 72 35

Sources: Wikipedia

Extension

.shr

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .shr files in Python

Python 
def is_shr(file_path: str) -> bool:
    """Check if file is a valid SHR by magic bytes."""
    signature = bytes([0x52, 0x49, 0x46, 0x46, 0x73, 0x68, 0x72, 0x35])
    with open(file_path, "rb") as f:
        return f.read(8) == signature

How to validate .shr files in Node.js

Node.js 
function isSHR(buffer: Buffer): boolean {
  const signature = Buffer.from([0x52, 0x49, 0x46, 0x46, 0x73, 0x68, 0x72, 0x35]);
  return buffer.subarray(0, 8).equals(signature);
}

How to validate .shr files in Go

Go 
func IsSHR(data []byte) bool {
    signature := []byte{0x52, 0x49, 0x46, 0x46, 0x73, 0x68, 0x72, 0x35}
    if len(data) < 8 {
        return false
    }
    return bytes.Equal(data[:8], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Related Formats

.ani .cda .cdr .cmx .ds4 .mmm

Frequently Asked Questions

What is a .shr file?

A .shr file is identified by the magic bytes 52 49 46 46 73 68 72 35 at byte offset 0. SHR is a legacy multimedia file format developed by Corel for the Corel SHOW! 5.0 player. It was used to store slide shows and presentation sequences for playback in the associated viewer. As an older proprietary format, it is generally considered safe to open, though support may be limited in modern software and files should still be obtained from trusted sources.

What are the magic bytes for .shr files?

The magic bytes for SHR files are 52 49 46 46 73 68 72 35 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .shr file?

To validate a .shr file, read the first bytes of the file and compare them against the known magic bytes (52 49 46 46 73 68 72 35) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .shr files?

There is no officially registered MIME type for .shr files. Systems typically use application/octet-stream as a generic fallback when handling this format.

Is it safe to open .shr files?

SHR (.shr) 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.