---
type: lookup
id: grib-grib2-47-52-49-42
asset: file-format-signatures
title: "47 52 49 42 — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "| 0 | drc | 3D model compressed with Google Draco [ 88 ] | 47 52 49 42 | GRIB | 0 | grib grib2 | Gridded data (commonly weather observations or forecasts) in the <https://en.wikipedia.org/wiki/World_Meteorological_Organization> WMO <https://en.wikipedia.org/wiki/GRIB> GRIB or <https://en.wikipedia.org/wiki/GRIB2?action=edit&redlink=1> GRIB2 format [ 89 ] |"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "47 52 49 42"
offset: "47"
extension: "grib grib2"
format: "Gridded data (commonly weather observations or forecasts) in the WMO GRIB or GRIB2 format"
---
**Hex signature:** 47 52 49 42

**Offset:** 47

**Extension:** grib grib2

**Format:** Gridded data (commonly weather observations or forecasts) in the WMO GRIB or GRIB2 format

>  | 0 | drc | 3D model compressed with Google Draco [ 88 ] | 47 52 49 42 | GRIB | 0 | grib grib2 | Gridded data (commonly weather observations or forecasts) in the <https://en.wikipedia.org/wiki/World_Meteorological_Organization> WMO <https://en.wikipedia.org/wiki/GRIB> GRIB or <https://en.wikipedia.org/wiki/GRIB2?action=edit&redlink=1> GRIB2 format [ 89 ] | 

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