Each document that you have on your Mac is associated with a default application which macOS uses to open the file whenever you double-click on its icon in Finder. Sometimes you may have a legitimate ...

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may want ...

All your PDF files open in Adobe Reader, but you want them to open in Preview. All your JPEG files open in Preview when you’d rather they open in Photoshop. How do you change what Mac OS X uses as the ...

Microsoft uses file associations to set default programs for opening different file types on all its operating systems. As a result, when you open a file, be it text, image, or document, on your ...

The type of file format that the current data will be saved to if no other file type is selected. For example, in a graphics program, the default file might be a JPEG or GIF. In Microsoft Word, the ...