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Summary
Name	ESRI ArcInfo DAT File (External)
Version
Other names
Identifiers	PUID: fmt/1594
Family
Classification	Text (Structured)
Disclosure
Description	Files which comprise part of an ArcInfo Coverage, which is a data model whose purpose is to store georelational data such as spatial location and descriptive data. Each ArcInfo Coverage resides in an ArcInfo workspace, a directory which contains two or more folders. These packages are generated using ArcGIS software, produced by Esri (https://www.esri.com/en-us/arcgis/about-arcgis/overview.) An ArcInfo coverage dataset typically has two types of .dat file: internal, which store the actual data table, and external, which contains a relative path to the data table. External .dat files follow a unique naming pattern: arcXXXX.dat, where XXXX is incrementally increasing number starting from 0000, e.g. arc0000.dat, arc0001.dat. The .dat files always come in pair with a NIT file and are both stored in an INFO directory at the root.
Orientation
Byte order
Related file formats	Equivalent to ESRI ArcInfo DAT File (Internal) Has priority over Canon Raw (3.0)
Technical Environment
Released
Supported until
Format Risk
Developed by	None.
Supported by	None.
Source	National Library of Australia / National Library of Australia
Source date	06 Jan 2022
Source description
Last updated	06 Jan 2022
Note	https://www.loc.gov/preservation/digital/formats/fdd/fdd000284.shtml