Application.DisplayAlerts = False
' Your code here to overwrite file.
Application.DisplayAlerts = True

HTH
Paul
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Be advised to back up your WorkBook before attempting to make changes.
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I have a script that I'm working on that, among other things may try and
write a file that already exist. Currently, it pops up a dialog box and
stalls the process. I'd like to not have the dialog boxes come up, but
rather simply overwrite the file. What option(s) do I need to specify to
accomplish that goal?

Bruce