Sometimes one of these works:

Tools|Options|General|Ignore other applications (uncheck it)

--- or ---

Close Excel and
Windows Start Button|Run
excel /unregserver
then
Windows Start Button|Run
excel /regserver

The /unregserver & /regserver stuff resets the windows registry to excel's
factory defaults.

Kirby wrote:

I'm running Office 2000 and recently have found that double-clicking on an
existing Excel file won't open the file, it only opens the Personal
Worksheet, but I can open the file using File Open. I thought this might be
related to the fact I'm getting low on resources errors when I run Word, even
thought I have 512Mb of RAM and no other applications open.

--

Dave Peterson