Excel Timer
Opens Excel files, waits for timer countdown, then closes the files.
... may use a third party add-on to download data. The Workbook_BeforeClose event saves the downloaded data values (not formulas) to a separate file. The data download may take minutes to complete. However, trying to use VBA to perform the wait results in blocking the download operation.
Example:
OpenExcel.exe -File:c:\temp\data.xls -Visible -CloseSeconds:15 -ShowCountDown
Note: the VBA code Application.OnTime Now + TimeValue("00:00:59"), "MethodName" may be an alternative solution.