Sometimes one of these works when you're having trouble with double clicking on
the file in windows explorer:

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.

Maybe one of these will work for you.

Alison wrote:

I was using office 2002 and have found all of a sudden I cannot open excel
spreadsheets by double clicking the file thru explorer or my computer. Excel
opens but the spreadsheet doesn't . I tried updating to Office 2003 but this
didn't help. I am able to open the same file on a different PC and I am able
to open the file by opening excel and then opening the spreadsheet.

--

Dave Peterson