.W File Extension
File Type 1OpenEdge Architect Source Code File
What is a W file?
Source code file used by OpenEdge Architect, an IDE used to develop software programs; contains program code, procedures, and forms that are used to compile an application; can be opened and edited in the AppBuilder perspective.
File Type 2Google Toolbar Search History File
.W File Association 2
File created by the Google Toolbar, a Web browser addon that uses Google Web search; saves a list of historical searches performed with Google Toolbar; sometimes used in forensics when figuring out what the user was last searching for on the Web.
W files are saved to the following directory after you've installed Google Toolbar:
C:\Users\[user]\AppData\Roaming\Google\Local Search History\
NOTE: Google Toolbar is not available for Chrome, since Chrome already uses Google by default for Web searches. Additionally, Google Toolbar for Firefox has been discontinued.