"File Already Exists" MsgBox when opening Workbooks

[RyanH]

I keep getting a msgbox popping up when I open some workbooks saying "File
Already Exists". What does this mean? As far as I know the workbook that is
opening is the only workbook with that filename.

 

[Leo Mazzi]

Try emptying the temporary folder and remove all temp files in the folder
where your document is (make sure to display hidden files also when browsing
the folder).

 

[Joel]

You may have a workbook open macro running. You can check to see if a macro
is running by typing Cntl - Break when the msgbox appears. Then press the OK
button on the message box. If a macro is running the code should stop
running in the VBA window at the line after the message box.