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Properties

Summary
Name	ESRI Attribute Index Files
Version
Other names
Identifiers	PUID: fmt/1696
Family
Classification	GIS
Disclosure
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.
Orientation
Byte order
Related file formats	None.
Technical Environment
Released
Supported until
Format Risk
Developed by	Esri / Esri
Supported by	Esri / Esri
Source	National Library of Australia / National Library of Australia
Source date	13 Jun 2022
Source description
Last updated	13 Jun 2022
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