How to get CWK files on OS X ? CWK files are created by claris work office suite that was developed by Apple and now has been discontinued. It also had different applications to create and modify word documents, spreadsheet and presentations. You may have created some important cwk files earlier and now you are unable to access them or they are lost so how to get cwk files on OS X is the question that you must be asking. The cwk files could have been deleted or corrupted so to recover them you can search for any backup you have created earlier. If you are unable to find backup of the cwk file then you can use the Mac data recovery software for this. The software supports the recovery of cwk files and it will scan the whole Mac drive for any deleted and corrupted Apple work file and then it will show you the files it found in the preview. You have to choose the files you want and they will be restore at your preferred location, So you don't have to look further for how to get cwk files on OS X.