A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data.
You could set the Enabled property of the text box to True, and its Locked property to True also. That way, the text will not be grayed out. The user will be able to click in the text box, but the text cannot be edited.
If you set the TabStop property of the text box to False, the user cannot accidentally tab into the text box.