en.wikipedia.org/wiki/Microsoft_Office_97

Microsoft's own February 3, 1997 press release says it was announcing "two new editions of Microsoft Office 97" and then explicitly describes "Office 97, VAR Edition" as one of them. That means Office 97 was not limited to only the five editions listed in the article.

A second Microsoft press release from March 23, 1998 also confirms that Office 97 Small Business Edition version 2.0 was a later addition, so the article's list is mixing a later variant with the earlier retail editions while still omitting the separately named VAR Edition.

Because Microsoft officially used the term Office 97, VAR Edition, the statement that Office 97 "has been released in five editions" is factually incomplete and therefore incorrect.

This is a counting error. Reliable write-ups on the Office 97 Easter eggs identify:

• Word 97 as the host of the hidden pinball game.
• Excel 97 as the host of the hidden flight simulator.
• The newly rediscovered developer credits sequence as another secret in Word 97.

So the Easter eggs mentioned here are spread across only two Office 97 applications—Word and Excel—not three.

Microsoft's own January 6, 1998 press release does not say Office 98 Macintosh Edition shipped to customers that day. It says Microsoft "publicly unveiled" the product on January 6, planned to release it to manufacturing that month, and expected "widespread product availability" in March.

So January 6, 1998 was the announcement/unveiling date, not the retail release date described in the article.