---
type: lookup
id: flv-46-4c-56
asset: file-format-signatures
title: "46 4C 56 — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "flv | <https://en.wikipedia.org/wiki/Flash_Video> Flash Video file"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "46 4C 56"
offset: "0"
extension: "flv"
format: "Flash Video file"
unverified_fields: hex_signature, offset
---
**Hex signature:** 46 4C 56

**Offset:** 0

**Extension:** flv

**Format:** Flash Video file

> flv | <https://en.wikipedia.org/wiki/Flash_Video> Flash Video file

Source: <https://en.wikipedia.org/wiki/List_of_file_signatures>