.CWB File Extension
What is a CWB file?
Audio project archive created by Cakewalk SONAR, an audio production application; saves all project audio resources in a single archive; used for backing up projects and transferring them between computers.
NOTE: CWB files are much larger than Cakewalk SONAR project (.CWP) files since they contain all audio assets. CWP files only contain references to the assets.