.RW3 File Extension
File TypeRapidWeaver 3 Site File
What is an RW3 file?
Site file created with RapidWeaver 3, an easy-to-used Web development program for Mac OS X; contains a list of Web pages built within the site; serves as the project file for a Web development project and can only be opened by RapidWeaver.
NOTE: RW3 files are created with RapidWeaver 3. RapidWeaver 4 and later saves projects with an .RWSW extension.