Excel 2007 floating message

[Tool_Man]

Some time ago I created what you see in the attached image. I'm embarrassed to say that for the life of me I cannot remember how I did it and now I would like to edit it and can't. This is a floating (movable) message that appears when the cell with the text "2023" is selected and disappears when another cell is selected. There is no VBA and no forms. It's not a comment. Right-clicking yields nothing.

 

[Fluff]

Looks like a data validation message.

 

[Tool_Man]

Looks like a data validation message.

Found it! Thanks.

 

[Fluff]

Glad to help & thanks for the feedback.

 

[Tool_Man]

For the benefit of some other dumbfounded soul, I'm posting this image as my solution to the problem.