History Lesson: WordPerfect and the .wpd File

TL;DR

Alan Ashton drafted the design in 1977; Bruce Bastian joined in 1978. The paying work was Eyring Research's Data General system for the City of Orem, Utah — they kept the IP. Satellite Software International incorporated in September 1979; SSI*WP shipped March 1980. The WordPerfect name arrived with the IBM PC port on 26 November 1982 (version 2.20). DOS 5.1 and Reveal Codes locked in legal offices. Microsoft Word and Office bundling took the market in the 1990s; Novell, then Corel, inherited the format. The files are still on disks. Word 2016 and later will not open them the old way. WPD Converter reads .wpd locally on Windows.

A word processor for a city, not a magazine cover

Alan Ashton, a Brigham Young University computer science professor, drafted the design in 1977. Bruce Bastian — a music major turned CS graduate student — joined him in 1978. The paying job was Eyring Research, under Eyring's contract to put a Data General system in the City of Orem, Utah. They kept the intellectual property. It was not a BYU product.

Satellite Software International (SSI) incorporated in September 1979. The third founder was Don Owens, on the marketing side. The first commercial product, SSI*WP, shipped in March 1980 for Data General systems at a list price of US$5,500 (W. E. Peterson, Almost Perfect). It was office software sold into minicomputer shops, not a consumer toy.

The IBM Personal Computer changed the addressable market. On 26 November 1982, SSI shipped version 2.20 for the IBM PC under the WordPerfect name. Through version 5.0 the PC program was written in x86 assembly. Version 5.1 moved more of the work into C. That is one reason DOS WordPerfect felt fast on hardware that made other word processors crawl.

Why the screen was empty

Wang and other dedicated word processors painted the screen with control codes. WordPerfect's early DOS versions did the opposite: a nearly blank page and a status line. Formatting lived in the file, not as clutter on the glass. Commands were function keys. Menus arrived later.

That blankness was a feature. Typists who had used a typewriter recognized the page. Power users memorized the keyboard template that came in the box. Classic WordPerfect put Help on F3 and Cancel on F1 — the reverse of what Windows later trained everyone to expect. Press F3 twice and the program drew the on-screen key map that the plastic overlay sat on.

Printers were the product

DOS did not give applications a standard way to talk to a printer. WordPerfect did. From version 3.0 onward, SSI shipped its own printer drivers. By the 5.1 era the list ran to hundreds of printer drivers. Law offices bought WordPerfect because the brief came out of the laser printer looking like the brief.

Version 4.2, in 1986, is the release most historians point to as the moment WordPerfect passed WordStar in the U.S. DOS market. Automatic paragraph and line numbering, footnotes, and tables of authorities were not extras. They were why a firm standardized on one program.

The company took the product's name around 1986 and became WordPerfect Corporation. At peak support volume, the Utah headquarters ran hold jockeys — live DJs in a booth — while the phones rang: the Deseret News reported more than 16,000 calls a day on 17 July 1991.

5.1, November 1989

WordPerfect 5.1 for DOS, released in November 1989, is the version people still mean when they say "WordPerfect." Pull-down menus (optional), tables, print preview, and that printer library. Styles had already arrived in 5.0, riding on the same stream of function codes. A generation of paralegals, court clerks, and municipal staff learned 5.1 and never fully left it. Some offices ran it into the 2000s because it did one job and did not surprise them.

Reveal Codes, and what a .wpd actually is

Reveal Codes is the feature Word never copied in a way that satisfied WordPerfect people. Split the window and you see the document as a stream: text interrupted by on/off function codes. Bold starts, bold ends. A bad indent is a code you can delete. The idea is closer to HTML than to Word's hidden object model — except the codes live in the file format, not as angle-bracket text you could edit in Notepad.

That streaming-code design is the .wpd family. Early files often had no extension, or used .wp; later versions settled on .wpd, with some version-specific names (.wp4, .wp5, .wp6, .wp7). There are three generations worth knowing in an archive:

4.x is essentially ASCII with embedded function codes and no magic header.
5.x is binary with a 16-byte prefix and the magic bytes FF 57 50 43 (ÿWPC).
6.x keeps ÿWPC but uses a different version byte and a larger packet/index structure.

Compatibility is not symmetric. WordPerfect 5.1 cannot natively read 6.x files; 5.1+ can open them only through a converter. From 6.0a forward, later Windows WordPerfect generally reads the family and ignores unknown codes.

Two quiet properties of that design still matter in archives:

WordPerfect macros lived outside the document. The file was less of a malware vehicle than a Word .doc with an embedded macro.
Microsoft Word's installable WordPerfect converters ran through Word 2013. Word 2016 and later no longer use them. A file that opened in Word 2003 can sit unread in Word 2021.

Windows, Novell, Corel

WordPerfect for Windows 5.1 arrived in 1991, late and unsteady compared with the DOS product people loved. Microsoft bundled Word with Office. The default document in American offices flipped in a few years.

WordPerfect Corporation sold the business to Novell in 1994. Corel bought WordPerfect from Novell in January 1996. Corel still ships WordPerfect Office. The line did not die. It left the center of the market. Bruce Bastian died on 16 June 2024, at age 76.

Some large shops stayed longer. The U.S. Department of Justice extended WordPerfect in 2005 — more than 50,000 seats. That is not the same as federal courts still requiring .wpd; federal courts had moved to Word and PDF by around 2016. France's judiciary was still using and training on WordPerfect as of 2022–24. Law firms kept matter files in .wpd because that is what the work was written in.

The files are still there

A .wpd on a share from 1994 is not a curiosity. It is a contract, a pleading, a city ordinance, a sermon, a dissertation. The application that created it may be gone from the PC. Word will often refuse it. The bytes are still a WordPerfect document.

If you need those pages in Word or as a PDF, convert them on this PC. Do not upload a legal archive to a random website.

WPD Converter is built for this format. Batch a folder of .wpd files to DOCX or PDF on this PC. Nothing is uploaded.