converter

I have been using Video DownloadHelper to download and convert videos for a long time. Recently, when Firefox installed version 36.0, it stopped working, which Firefox stated was a known problem. After a month or so, a new version of Video DownloadHelper has installed itself. It works for...

Someone's sent me a file in Clarisworks format, I think (.cwk). I don't have anything that can open it, and they're not available to resend it in a different format. Do you know of a viewer or conversion program that will work on Windows? Just to be able to extract the text would be fine...