Microsoft Knowledge Base Article - 184159

[Guest]

I experience this error "A document with the name '<file
name.xls>' is already open. You cannot open two documents
with the same name, even if the documents are in different
folders. To open the second document, either close the
document that's currently open, or rename one of the
documents". The MS Knowledge Base does explain solution.
Not even one condition apply to the cause stated in the
article. OS windows 2000 Pro, Excel 97 SP2. Any idea
what's wrong and how to resolved it.

 

[Dave Peterson]

Maybe this'll help (From Debra Dalgleish's site):

http://www.contextures.com/xlfaqApp.html#AlreadyOpen

 

[Gord Dibben]

First try the standard fix(es)......Tools>Options>General uncheck "ignore
other applications"

OR Start>Run "excel.exe /regserver"(no quotes and note the space before the /
mark).

You may have to enter your full path to excel.exe....in that case surround
with quotes as in..... "C:\mypath\to Excel\somewhere\excel.exe" /regserver

If no joy try Start>Run "excel.exe /unregserver" then the second step again.

Gord Dibben Excel MVP

 

[Jerry W. Lewis]

I have never seen this message occur when there wasn't a file already
open with the same name, but its source might not be ovious. You might
try going to Tools|Add-Ins and uncheck any checked items, then close and
re-open Excel to see if the problem goes away.

Jerry