# eXtensible Markup Language — file signature 3C 00 3F 00 78 00 6D 00 6C 00 20 at offset 0 after BOM

For eXtensible Markup Language, hex signature is 3C 00 3F 00 78 00 6D 00 6C 00 20; offset is 0 after BOM; extension is xml (UTF-16LE), verified against its source on 2026-09-22.

- **Hex signature:** 3C 00 3F 00 78 00 6D 00 6C 00 20 _(verified: appears in the quote below)_
- **Offset:** 0 after BOM _(verified: appears in the quote below)_
- **Extension:** xml (UTF-16LE) _(verified: appears in the quote below)_
- **Format:** eXtensible Markup Language _(verified: appears in the quote below)_

## What the source says

> 3C 3F 78 6D 6C 20 | <?xml␠ | 0 after BOM | xml (UTF-8 or other 8-bit encodings) | eXtensible Markup Language [29] [66] | 3C 00 3F 00 78 00 6D 00 6C 00 20 | <␀?␀x␀m␀l␀␠␀ | xml (UTF-16LE) |

## 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/).