.wps

.wps is a file extension used for:

WPS Office Writer files
Microsoft Works, files{{cite web|url=http://pcsupport.about.com/od/fileextensions/f/wps-file.htm|title=What is a WPS File?|work=About Tech|date=27 January 2016|accessdate=31 July 2016|author=Fisher, Tim|archive-date=16 August 2016|archive-url=https://web.archive.org/web/20160816020404/http://pcsupport.about.com/od/fileextensions/f/wps-file.htm|url-status=dead}}
Rockbox, while playing screen files
World Programming System program files

References