Often when you install a new application, it asks you to make it the default ... the "Enter" key during installation, you might inadvertently grant a new program "ownership" of your Excel workbooks.

Here's how to create ... text or data that’s not found in the list is entered. Enter a custom title and a message. Should the title or text fields be left empty, Excel will apply a default ...

Susan Harkins shows you how to format and unlock input cells in Excel at ... and delete data in B2:E5, but they can’t even select other cells. That’s because, by default, all cells are locked ...