I cannot save my workbook because the file status
is suddenly showing as "Read Only". Are there any
settings in Excel 2007 which might cause a workbook
to become "Read Only"??? I login to my personal
account every day, after which I shut down all
applications and log out. Therefore, I'm somewhat
positive that I'm not logged in twice.

If it is possible that another user, such as the network
administrator or a boss, has the file open, is there a
way to see who currently has the file open?? Any
clues as to what is going on here?

Thank you!