{
 "id": "esri-arcinfo-grid-nit-file",
 "name": "ESRI ArcInfo Grid .nit File",
 "category": "gis",
 "identifiers": {
  "extensions": [
   "nit"
  ],
  "puid": [
   "fmt/1596"
  ],
  "wikidata": [
   "Q111519484"
  ],
  "signatures": [
   {
    "name": "ESRI ArcInfo Grid .nit File",
    "sequences": [
     {
      "position": "bof",
      "offset": 16,
      "max_offset": 0,
      "pattern": "00(02|04|08)ffff00010004"
     }
    ]
   }
  ]
 },
 "status": "unknown",
 "summary": "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.",
 "tools": [
  {
   "name": "ArcInfo",
   "url": "http://resources.arcgis.com/content/arcinfo-workstation-previous-versions",
   "reads": true,
   "writes": false
  }
 ],
 "projects": [
  {
   "name": "PRONOM fmt/1596",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1596",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q111519484",
   "url": "https://www.wikidata.org/wiki/Q111519484",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-20",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}