Try the usual fix(es) for this problem.

ToolsOptionsGeneral uncheck "Ignore other Applications"
Exit Excel and try again

If this doesn't work try to re-register Excel

Close Excel first and On the Windows Taskbar

1) StartRun "excel.exe /unregserver"(no quotes)OK.
2) StartRun "excel.exe /regserver"(no quotes)OK.

See the space between exe and /regserver

You might have to designate a full path to excel.exe.
In that case StartRun "C:\yourpath\excel.exe /regserver"(no quotes)OK.


Gord Dibben MS Excel MVP

On Wed, 26 Sep 2007 11:52:00 -0700, Markb
wrote:

I am using Excel 2000. When I double click on a file name in Windows
Explorer I get an error message that the file cannot be found. However, when
I click on Open in Excel and find the file I CAN open it. This is more of a
pain in the neck than a critical issue, but I would like to resolve it.