My desktop documents suddenly won't open” or “There's a cloud icon on my file.” These are common consultations I've received ...

Most Mac users will be familiar with Finder's ability to display icon previews for file types that it recognizes. The Finder icon for a JPEG image for example will show a small thumbnail-sized version ...

There's a lot to love about Mac, but one of its quirkier features is how easy it is to change icons for files and folders. By default, a file is depicted by a piece of paper, while folders are -- well ...