Topher, an avid Mac user for the past 15 years, has been a contributing author to MacFixIt since the spring of 2008. One of his passions is troubleshooting Mac problems and making the best use of Macs ...

It’s easy to never go beyond the basics of Open and Save dialog boxes, despite their being perhaps the most-used feature of the Mac interface. Instead of simply working with the basics, make these ...

Q: Here’s my problem. Whenever I open a Word document, I get this message: “The command cannot be performed because a dialog box is open. Click OK, then close open dialog boxes to continue.” I don’t ...

It’s happened to all of us: A colleague sends an image that you’d like to edit, but when you double-click on it, Preview launches instead of Adobe Photoshop. Or, you save a text-only document from ...

Certain kinds of business computer files, such as Microsoft Word documents, multimedia files and ZIP archives, carry important information in the data bytes nearest the file's beginning; software ...