# 46 4C 56 — File format magic numbers

For 46 4C 56, offset is 0; extension is flv; format is Flash Video file, recorded from its source on 2026-08-03.

- **Hex signature:** 46 4C 56 _(unconfirmed — we could not tie this to the quote below)_
- **Offset:** 0 _(unconfirmed — we could not tie this to the quote below)_
- **Extension:** flv
- **Format:** Flash Video file

## What the source says

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

## Source

- https://en.wikipedia.org/wiki/List_of_file_signatures

Last verified: 2026-08-03. Review by: 2027-08-03.
Part of [File format magic numbers](https://referencesource.org/file-format-signatures/).