My computer is a IMAC, and operating systems upgrades had cost me the ability to open my hundreds of cwk files. After searching the ‘Net, I found the Document Converter at the Apple Apps Store, only $9.99! After downloading it, unfortunately, it would not convert cwk files to rtf. But fear not . . . After notifying the manufacturer, RootRiseTech.Com, of my problem, they walked me through the step-by-step solution to the problem, which was a problem on my computer, and not their software. And they responded to my help request the very same day! This app is very simple to use, and is amazingly fast in converting files. Well worth the price!
There was a second problem a week or so later, seemed to be the same error message. I contacted the manufactuer, and they found the problem to once again was mainly associated with
my computer, related to where the converted file would be placed. Couple of days later, they came out with a updated version that fixed the conflict with my computer. These people have a
great product, and immediate response to your problems from their tech department. I highly recommend this Document Converter!