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 Mon, 20 Nov 2006 15:09:01 -0800, Robert
wrote:

I changed from MS Works 7.0 to MS Office 2003. I had created numerous
spreadsheet documents in Works. I started to convert them from Works to
Excel. I converted the first one by opening Excel, choosing FileOpen. In the
Open dialog box, I clicked on the file I wanted, and it opened in Excel. I
worked on it, and then closed it and it was saved with the extension of .xlr.
I later tried to open it and could not do so. I also noticed that all other
spreadsheet documents had been automatically changed from Works to .xlr. I
found that I can open the documents by using the Open dialog box procedure
set forth above. This is more burdensome than simply going to the file,
clicking it and having it open. Can anyone give me some help. Thank you.

Gord Dibben MS Excel MVP