---
type: lookup
id: rbxl-3c-72-6f-62-6c-6f-78-21
asset: file-format-signatures
title: "3C 72 6F 62 6C 6F 78 21 — File format magic numbers"
sources:
  - https://en.wikipedia.org/wiki/List_of_file_signatures
source_quote: "Roblox place file [ 73 ]"
generated: true
verified: false
harvested: 2026-08-03
stale_after: 2027-08-03
hex_signature: "3C 72 6F 62 6C 6F 78 21"
offset: "0"
extension: "rbxl"
format: "Roblox place file"
unverified_fields: extension, hex_signature, offset
---
**Hex signature:** 3C 72 6F 62 6C 6F 78 21

**Offset:** 0

**Extension:** rbxl

**Format:** Roblox place file

> Roblox place file [ 73 ]

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