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Format

XLD4 (Graphic Data Document)

Summary

Name
XLD4 (Graphic Data Document)
Identifiers
PUID: fmt/1448
Format type
Image (Raster)
Description
XLD4 is a raster graphics format, sometimes known as Q4 file, associated with PC-98 a lineup of 16 and 32 bit computers manufactured by NEC in Japan. Each image consists of two separate files, one with a q4 extension and another with a q4d extension. The q4 file contains the bitmap image and the q4d the text description. In PRONOM these have been given two separate PUIDs.
Note
http://fileformats.archiveteam.org/wiki/XLD4
File extensions
q4d
Submitted by
The National Archives and Records Administration / The National Archives and Records Administration

Internal signatures

XLD4 (Graphic Data Document)

Description
BOF: Magic bytes ASCII string ‘===============>>>>> XLD4 GRAPHIC DATA DOCUMENT <<<<<===============’

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D3E3E3E3E3E20584C4434204752415048494320444154412020444F43554D454E54203C3C3C3C3C3D3D3D3D3D3D3D3D3D3D3D3D3D3D3D
Endianness
None

Changelog

  • V98

    Release date
    27 October 2021
    • Added format

      XLD4 (Graphic Data Document): Full entry added. Submitted by The National Archives and Records Administration.

    • Added signature

      XLD4 (Graphic Data Document): Signature developed and samples provided by The National Archives and Records Administration.