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 ...

Regularly backing up your Mac with Time Machine can prevent data loss and allow you to restore earlier versions of files. To ...

When you first install Microsoft Office 2007, its programs become the default programs for opening Office files. You can later set other applications as the default programs. OpenOffice is an ...

One of our readers reported that all the file extensions have changed to some unknown file format. If so, it could be a virus! If a virus has changed all the files extensions to unknown applications, ...

Whether you just need to find an old version of a document, rescue a document you accidentally deleted, want to copy over all your settings, files and folders to a new Mac, or if you need to recover ...

If Microsoft Excel fails to recognize a file in the XLSX or XLS format, the data contained in the file could be corrupted. When you open a corrupted workbook in Excel, the program should automatically ...

If you changed the Navigation pane width in File Explorer on Windows 11/10, and you want to now get it back to the default width, then you can reset the File Explorer Navigation pane width to default ...