{
 "id": "lotus-1-2-3-worksheet-9-8-millennium",
 "name": "Lotus 1-2-3 Worksheet",
 "category": "spreadsheet",
 "identifiers": {
  "extensions": [
   "123"
  ],
  "puid": [
   "fmt/1453"
  ],
  "wikidata": [
   "Q109996609"
  ],
  "mime": [
   "application/vnd.lotus-1-2-3",
   "application/x-123"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "00001a0005100400",
    "notes": "Lotus 1-2-3 Worksheet Version 9.8 Millennium"
   }
  ],
  "signatures": [
   {
    "name": "Lotus 1-2-3 Worksheet Version 9.8 Millennium",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "00001a0005100400"
     }
    ]
   }
  ]
 },
 "status": "unknown",
 "summary": "Lotus 1-2-3 Workbook is a spreadsheet program produced by the Lotus Software Group (later acquired by IBM). The original release was in 1983 and it has been discontinued since 2013. The original 1-2-3 files have .wks extensions. Version 2.0 originally used a .wk1 extension but this was changed quickly to .wk2 and after this the number in the extension corrolates with the version number. Some later versions have the extension .123",
 "tools": [
  {
   "name": "libwps",
   "url": "https://www.wikidata.org/wiki/Q134698976",
   "reads": true,
   "writes": false
  }
 ],
 "projects": [
  {
   "name": "PRONOM fmt/1453",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1453",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q109996609",
   "url": "https://www.wikidata.org/wiki/Q109996609",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-20",
 "version": "9.8 Millennium",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}