---
type: lookup
id: heif-00-00-00-18-66-74-79-70-68-65-69-63-00-00-00-00
asset: file-format-signatures
title: "00 00 00 18 66 74 79 70 68 65 69 63 00 00 00 00 — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "00 00 00 18 66 74 79 70 68 65 69 63 00 00 00 00 | ␀␀␀ftypheic␀␀␀␀ | 0 | heif | Apple HEIF image file [ 102 ] |"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "00 00 00 18 66 74 79 70 68 65 69 63 00 00 00 00"
offset: "0"
extension: "heif"
format: "Apple HEIF image file"
---
**Hex signature:** 00 00 00 18 66 74 79 70 68 65 69 63 00 00 00 00

**Offset:** 0

**Extension:** heif

**Format:** Apple HEIF image file

> 00 00 00 18 66 74 79 70 68 65 69 63 00 00 00 00 | ␀␀␀ftypheic␀␀␀␀ | 0 | heif | Apple HEIF image file [ 102 ] |

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