Computer software changes so rapidly that what worked on your last computer may be completely obsolete when you buy a new one, causing you endless frustration. You may have found or been given a mystery software file that is potentially full of family tree information that you simply could not open? It probably had a file extension you didn’t recognize. And even if you did recognize the file type, you may not have been able to open it. You computer doesn't have the necessary program, and you can't find anyony else who does. Fortunately, there is a free website that can help. Called OpenWith.org, the website can help you identify old software files. It even provides free software tools to open many of these old software files. This is not the kind of website you would use frequently, but it is well worth making note of for when you need it.