# IFF CEL Animation — file signature 46 4F 52 4D ?? ?? ?? ?? 41 4E 49 4D at offset 0 any For IFF CEL Animation, hex signature is 46 4F 52 4D ?? ?? ?? ?? 41 4E 49 4D; offset is 0 any; extension is anim iff, verified against its source on 2026-09-22. - **Hex signature:** 46 4F 52 4D ?? ?? ?? ?? 41 4E 49 4D _(verified: appears in the quote below)_ - **Offset:** 0 any _(verified: appears in the quote below)_ - **Extension:** anim iff _(verified: appears in the quote below)_ - **Format:** IFF CEL Animation _(verified: appears in the quote below)_ ## What the source says > 46 4F 52 4D ?? ?? ?? ?? 41 4E 49 4D | FORM????ANIM | 0 any | anim iff | IFF CEL Animation | ## Source - https://en.wikipedia.org/wiki/List_of_file_signatures Last verified: 2026-09-22. Review by: 2027-09-22. Part of [File format magic numbers](https://referencesource.org/file-format-signatures/).