You can see here that, oddly enough, I have three different versions of TextEdit on my own computer running Mac OS X Tiger 10.4.2. To open a file in your editor, Control-Click on the file’s icon. First off, in Mac OS X, files with “.html” filename suffixes are automatically associated with Safari, the Web browser, so if you double click on them, you don’t get to an editor at all. There are a couple of ways you can address this problem.