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Format

AutoCAD Custom Dictionary

Summary

Name
AutoCAD Custom Dictionary
Identifiers
PUID: x-fmt/38
Description
AutoCAD is 2D and 3D computer-aided design software used by professionals such as architects, engineers and city planners to prepare technical drawings. Developed by Autodesk. It was first released in 1982, and is now very widely used. AutoCAD comes with a main dictionary which is used for spell checking, but also one or more custom dictionaries can be installed. Words can be added to these by the user. The default custom dictionary is called SAMPLE.CUS, and is found in the in the ‘support’ folder of an AutoCAD installation.
File extensions
cus
Source
Digital Preservation Department / The National Archives

Internal signatures

AutoCAD Custom Dictionary

Note
Absolute from beginning of file, magic bytes: ACAD..ACIS..AutoCAD..AutoCDM..Autodesk..AutoEDM..AutoFlix..AutoLathe..AutoLISP..AutoShade..AutoSketch..AutoSolid..AutoSurf..AutoVision

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
414341440D0A414349530D0A4175746F4341440D0A4175746F43444D0D0A4175746F6465736B0D0A4175746F45444D0D0A4175746F466C69780D0A4175746F4C617468650D0A4175746F4C4953500D0A4175746F53686164650D0A4175746F536B657463680D0A4175746F536F6C69640D0A4175746F537572660D0A4175746F566973696F6E0D0A
Endianness
None

Changelog

  • Added in V118

    Release date
    30 April 2024

    AutoCAD Custom Dictionary: Added internal signature and description. Submitted by The National Archives and Records Administration.

    AutoCAD Custom Dictionary: Signature researched and samples provided by The National Archives and Records Administration.