Have you got an entry on the "Alternate startup file location"
(ToolsOptionsGeneral) This extract is from the helpfile:-

Specify an additional startup folder
Caution Because Microsoft Excel will attempt to open every file in the
additional startup folder, make sure you specify an empty folder or a folder
that contains only files that Excel can open.


"dnlighting" wrote:

I double click on an Excel file and 4 or 5 files open simultaneously.