1545 ClarisWorks/AppleWorks Database 5 Database ClarisWorks was a productivity suite developed by the Apple subsidiary, Claris, which was later renamed AppleWorks as of version 5. 1 Digital Preservation Department / The National Archives 27 Mar 2015 27 Mar 2015 fmt/746 PUID cwk File extension 1073 CWK 5 Database (Version){3}BOBO{260}(format type 0x03 = database) 1 Absolute from BOF 0 0 05{3}424F424F{260}03 Is previous version of 1550 AppleWorks Database Is subsequent version of 1540 ClarisWorks Database