Document
What is a .xy4 file?
A .xy4 file is a XYWrite Document (version IV). This is a document format, so it holds text and layout meant to be read.
How to open a .xy4 file
- Try LibreOffice (free, Windows/Mac/Linux) — it opens an enormous range of current and historic document formats.
- Microsoft Word and Google Docs handle most mainstream document types.
- If nothing opens it, open it in a text editor: many older document formats have readable text inside.
The registry records this extension against XYWrite Document, so software from that family is the most likely match.
How to convert a .xy4 file
- Once it opens in LibreOffice or Word, Save As .docx or .pdf to get it into a format you can use anywhere.
The technical record
For archivists, developers and the merely curious: these are the PRONOM registry entries for .xy4.
| Format name | Version | MIME type | PUID |
|---|---|---|---|
| XYWrite Document | IV | — | x-fmt/373 |