A "word processor" that is part of the MicrosoftOffice suite.
Some people use it for writing emails or webpages, and using Word's "save as html" feature. This is a bad idea, because it makes horrible HTML. This is (most likely) a deliberate act designed to make code that renders better when using the InternetExplorer browser compared to other browsers. Some example generated HTML:
<html> <head> <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 10 (filtered)"> ... </head> <body lang=EN-US link=blue vlink=purple> <div class=Section1> <p class=MsoNormal><font size=1 color=navy face=Verdana><span style='font-size:9.0pt;font-family:Verdana;color:navy'>Hello,</span></font></p> <p class=MsoNormal><font size=1 color=navy face=Verdana><span style='font-size:9.0pt;font-family:Verdana;color:navy'> </span></font></p> ... <p class=MsoNormal><font size=1 color=navy face=Verdana><span style='font-size:9.0pt;font-family:Verdana;color:navy'> </span></font></p> <table class=MsoTableGrid border=1 cellspacing=0 cellpadding=0 style='border-collapse:collapse;border:none'> <tr height=14 style='height:10.7pt'> <td width=476 colspan=2 height=14 valign=top style='width:357.1pt; border: solid windowtext 1.0pt;padding:0in 5.4pt 0in 5.4pt;height:10.7pt'> <p class=MsoNormal><b><font size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana;font-weight:bold'>August </span></font></b></p> </td> </tr> <tr height=57 style='height:42.9pt'> <td width=69 height=57 valign=top style='width:51.4pt;border:solid windowtext 1.0pt; border-top:none;padding:0in 5.4pt 0in 5.4pt;height:42.9pt'> <p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt; font-family:Verdana'>8-12</span></font></p> </td> ...
There is a tool that cleans up this mess; it is rightfully called demoroniser. Another (more generic) one is html tidy.
Apparently the latest versions of MS Word have a feature to produce cleaner HTML
5 pages link to MicrosoftWord: