{
 "id": "orcad-project-file",
 "name": "OrCAD Project File",
 "category": "text",
 "identifiers": {
  "extensions": [
   "opj"
  ],
  "puid": [
   "fmt/1572"
  ],
  "wikidata": [
   "Q105855649"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "284578707265737350726f6a65637420",
    "notes": "OrCAD Project File"
   },
   {
    "offset": 0,
    "hex": "284578707265737350726f6a6563742022"
   }
  ],
  "signatures": [
   {
    "name": "OrCAD Project File",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "pattern": "284578707265737350726f6a65637420"
     }
    ]
   }
  ]
 },
 "status": "unknown",
 "summary": "OrCAD, a proprietary software tool suite used primarily for electronic design automation (EDA). The software is used mainly by electronic design engineers and electronic technicians to create electronic schematics, perform mixed-signal simulation and electronic prints for manufacturing printed circuit boards. OrCAD was taken over by Cadence Design Systems in 1999 and was integrated with Cadence Allegro since 2005. A OrCAD Project File (.OPJ) is a container for the OrCAD design file (.DSN). In addition, a project file also includes simulation profile and layout information.",
 "tools": [
  {
   "name": "OrCAD",
   "url": "https://www.orcad.com/",
   "reads": true,
   "writes": true
  }
 ],
 "projects": [
  {
   "name": "PRONOM fmt/1572",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1572",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q105855649",
   "url": "https://www.wikidata.org/wiki/Q105855649",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-20",
 "aliases": [],
 "structure": [],
 "parsers": [],
 "conversions": [],
 "samples": [],
 "claims": [],
 "verification": []
}