VLC Player Skin file

application/octet-stream

Safe

Magic Bytes

Offset: 0
1F 8B 08 00

VLC Player Skin (VLT) is a specialized archive format developed by the VideoLAN project for customizing the appearance of the VLC media player. These files contain XML configuration data and image assets that define the player's graphical user interface, including button layouts and control windows. Using standard compression methods, the format is inherently safe for distribution, though users should download skins from verified community repositories to avoid potential asset spoofing or malicious modifications.

Extension

.vlt

MIME Type

application/octet-stream

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .vlt files in Python

Python
def is_vlt(file_path: str) -> bool:
    """Check if file is a valid VLT by magic bytes."""
    signature = bytes([0x1F, 0x8B, 0x08, 0x00])
    with open(file_path, "rb") as f:
        return f.read(4) == signature

How to validate .vlt files in Node.js

Node.js
function isVLT(buffer: Buffer): boolean {
  const signature = Buffer.from([0x1F, 0x8B, 0x08, 0x00]);
  return buffer.subarray(0, 4).equals(signature);
}
Go
func IsVLT(data []byte) bool {
    signature := []byte{0x1F, 0x8B, 0x08, 0x00}
    if len(data) < 4 {
        return false
    }
    return bytes.Equal(data[:4], signature)
}

API Endpoint

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

Related Formats