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Format

ESRI Attribute Index Files

Summary

Name
ESRI Attribute Index Files
Identifiers
PUID: fmt/1696
Format type
GIS
Description
File generated by ESRI ArcGIS software. Found with ESRI Shapefile Header Index files, which have extension ain. Together they store the attribute index of the active fields in a table, or a theme’s attribute table.
Note
https://www.loc.gov/preservation/digital/formats/fdd/fdd000280.shtml https://support.esri.com/en/technical-article/000004893 http://desktop.arcgis.com/en/arcmap/10.3/tools/data-management-toolbox/add-attribute-index.htm
File extensions
ain
Submitted by
National Library of Australia / National Library of Australia
Developed by
Esri / Esri
Supported by
Esri / Esri

Internal signatures

ESRI Attribute Index Files

Description
BOF Absolute from beginning of file, magic bytes: Aή.@...

Byte sequences

Min Frag Length
Absolute from BOF
Offset
0
Max offset
0
Byte Sequence
41CEAE1940060000
Endianness
None

Changelog

  • V105

    Release date
    29 June 2022
    • Added format

      ESRI Attribute Index Files: Full entry added. Submitted by The National Library of Australia.

    • Added signature

      ESRI Attribute Index Files: Signature researched and samples provided by The National Library of Australia.