Maybe:

http://contextures.com/xlfaqApp.html#ReadOnly
or
http://contextures.com/xlfaqApp.html#AlreadyOpen

Both from Debra Dalgleish's site.

Smeeta Geary wrote:

I'm trying to open an Excel file on a network drive. However when I try to
open it. It has an Error Message:
File in use. Drivers return 'Taco far return disk Chart 2005.xls' is locked
for editing. Options are 'Read Only', 'Notify' or 'Cancel'

I know no one is in the spreadsheet, and does not indicate who would be if
there was. Can anyone help?

--

Dave Peterson