# 53 45 51 36 — File format magic numbers

For 53 45 51 36, offset is 0; extension is seq6; format is RCFile columnar file format, recorded from its source on 2026-08-03.

- **Hex signature:** 53 45 51 36 _(unconfirmed — we could not tie this to the quote below)_
- **Offset:** 0 _(unconfirmed — we could not tie this to the quote below)_
- **Extension:** seq6 _(unconfirmed — we could not tie this to the quote below)_
- **Format:** RCFile columnar file format

## What the source says

> <https://en.wikipedia.org/wiki/RCFile> RCFile columnar file format

## 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/).