FileInfo.com - The File Extensions Resource

.CWS File Extension

File Type	Claris Works Template
File Format	File
Common?	No
File Description	Template for a Claris Works document, such as a word processing, drawing, or spreadsheet file
Program(s) that open cws files	Mac: Claris Works or AppleWorks

Information from FileInfo.com - The File Extensions Resource.
http://www.fileinfo.com/extension/cws