Michael,
I appreciate the response.
I'm getting conflicting messages. My first thought is that the dialog is from Outlook because Outlook VBA is writing to a closed Excel workbook and the Excel application has yet to be launched. However, the dialog box title is "Microsoft Excel" (see attached).

Since the VBA is operating exclusively from Outlook (
source code - altered to write to a set filename with current date, where
strFil InputBox is replaced with
strFile = "H:\Documents\_Shortcuts\Outlook Item List_" & Format(Now, "yyyymmdd") & ".xlsx"),
I'm confused as to how 1) the dialog is coming from Excel if Excel isn't even "running" and 2) how would I put code in Excel to alter the behavior that originates in Outlook.
[DOUBLEPOST=1444230435][/DOUBLEPOST]Diane,
I was hoping to be able to suppress the warning from Outlook using an analog of DisplayAlerts = False.