Unwanted workbooks on startup

[kenrock]

Hi,
When I have been using Excel for Mac 2011, I have stored my macros in the Personal Macro Workbook which appears when I open Excel. I must have done something unusual during one session for now, when I open Excel, not only Personal Macro Workbook appears but also Personal Macro Workbook1 together with two workbooks I had stored on the Desktop. I want to get rid of these unwanted workbooks but I cannot locate them. I can see the Personal Macro Workbook in the Documents/MicrosoftUserData/Excel folder but I can't find the others.
I tried changing the name of one of the two unwanted workbooks in the Desktop but a new workbook with the original name appears.
Can anyone please help me either locate these workbooks or tell me where the startup list is stored?
Regards, kenrock

[LJMetzger]

I have a similar problem using Excel 2003 (which actually happened again ten minutes ago). I have Macros assigned to Shapes on my worksheet. Occasionally when I create a copy of the Workbook file, the Macros reference the 'Old File Name'. When this happens, the 'Old Workbook' gets opened (to run the Macro in the old file) when I 'click' on one of the buttons in the copy of the original file.

I fix this by reassigning the Macros for each button to reference the New file.