This is a 2003 AD domain, but the pc I used to open excel files on one of the member server. Whenever I tried to open Windows explorer, browse into the above server, and then double-click to open any xls file, the error message as attached popup.
I can open other files - doc, pdf, and so on without problem. If I open excel program directly, and then select open any xls file, no problem. Is this a file association problem? How to resolve?