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*Details: File format summary

    
 

 

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Summary
Name ESRI ArcInfo Grid .nit File
Version  
Other names  
Identifiers PUID:  fmt/1596
Family  
Classification GIS
Disclosure  
Description Files which comprise part of an ArcInfo Grid, a raster data model storing information in a matrix of cells, with values representing a coordinate, and sometimes linked to an attribute table. ArcInfo Grid models are generated using ArcGIS software, produced by Esri (https://www.esri.com/en-us/arcgis/about-arcgis/overview.) Nit files follow a consistent naming pattern: arcXXXX.nit, where XXXX is an incrementally increasing number starting from 0000, e.g, arc000.nit, arc0001.nit, arc0002.nit. Nit files are always stored in an /info/ directory at the root. They are associated with .dat and .adf files, and their function is to store file structure and field definition information of the grid.
Orientation  
Byte order  
Related file formats None.
Technical Environment  
Released  
Supported until  
Format Risk  
Developed by None.
Supported by None.
Source National Library of Australia / National Library of Australia
Source date 18 Jan 2022
Source description 11/2023 (v.115)- Format type changed to GIS and max-offset modified for BOF signature to allow for more exact signature identification. Internally researched
Last updated 14 Nov 2023
Note http://avce00.maptools.org/docs/v7_bin_cover.html#ARC.DAT http://webhelp.esri.com/arcgisdesktop/9.2/index.cfm?TopicName=How_coverages_are_stored https://support.esri.com/en/technical-article/000008526 https://www.loc.gov/preservation/digital/formats/fdd/fdd000281.shtml
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