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TEX (.tex)

.tex file signature | application/x-tex

Safe

Magic Bytes

Offset 0
5C 69 6E 70 75 74

Sources: Apache Tika

All Known Signatures

8 signature variants are documented for .tex files across multiple sources.

Hex Signature Offset Sources
5C 69 6E 70 75 74 0 Apache Tika
5C 73 65 63 74 69 6F 6E 0 Apache Tika
5C 73 65 74 6C 65 6E 67 74 68 0 Apache Tika
5C 64 6F 63 75 6D 65 6E 74 73 74 79 6C 65 0 Apache Tika
5C 63 68 61 70 74 65 72 0 Apache Tika
5C 64 6F 63 75 6D 65 6E 74 63 6C 61 73 73 0 Apache Tika
5C 72 65 6C 61 78 0 Apache Tika
5C 63 6F 6E 74 65 6E 74 73 6C 69 6E 65 0 Apache Tika

Extension

.tex

MIME Type

application/x-tex

Byte Offset

0

Risk Level

Safe

Validation Code

How to validate .tex files in Python

Python 
def is_tex(file_path: str) -> bool:
    """Check if file is a valid TEX by magic bytes."""
    signature = bytes([0x5C, 0x69, 0x6E, 0x70, 0x75, 0x74])
    with open(file_path, "rb") as f:
        return f.read(6) == signature

How to validate .tex files in Node.js

Node.js 
function isTEX(buffer: Buffer): boolean {
  const signature = Buffer.from([0x5C, 0x69, 0x6E, 0x70, 0x75, 0x74]);
  return buffer.subarray(0, 6).equals(signature);
}

How to validate .tex files in Go

Go 
func IsTEX(data []byte) bool {
    signature := []byte{0x5C, 0x69, 0x6E, 0x70, 0x75, 0x74}
    if len(data) < 6 {
        return false
    }
    return bytes.Equal(data[:6], signature)
}

API Endpoint

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

See the full API documentation for all endpoints and parameters.

Frequently Asked Questions

What is a .tex file?

A .tex file is a TEX file.

What are the magic bytes for .tex files?

The magic bytes for TEX files are 5C 69 6E 70 75 74 at byte offset 0. These bytes uniquely identify the file format regardless of the file extension.

How do I validate a .tex file?

To validate a .tex file, read the first bytes of the file and compare them against the known magic bytes (5C 69 6E 70 75 74) at offset 0. This is more reliable than checking the file extension alone, as extensions can be renamed.

What is the MIME type for .tex files?

The primary MIME type for .tex files is application/x-tex.

Is it safe to open .tex files?

TEX (.tex) 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.