With your document open, press Alt+F11. This brings up the VB Editor.
Next, double-click on ThisWorkbook. There is most likely some code for
Workbook Open. If you don't know why the code is there, you may want to
leave it.

HTH,
Paul

"KLamm" wrote in message
...
When I open an Excel doc, a pop-up message reads: "The billing month is
set
as March, 2007. Would you like to change the billing month?" I have to
click YES or NO to open the doc. How do I delete this? I don't know if
it's
a comment, note, macro or something else.