I had 2006 and 2012 Family Tree Maker software installed on laptop. My file extension is FTW family file. On the 2006, I got a couple of messages saying there were known problems with the software. I just deleted the 2006 version that I had installed from a CD, went to my FTW file and tried to open. The "open with" option was not even available when I right-clicked the FTW file. When I checked the Program files, I found two Program files; one has (x86) after it. That is where my 2012 software is located. I don't understand the two program files. This is mind-boggling for me. I appreciate your answering my query.