As the problem discussed here
https://forums.techarena.in/ms-office-support/749154.htm
I have same problem, but when I try to solution suggested, I can't get the DDE to be unchecked... It comes back!!!
I'm sure someone has same problem. Please help. THank you
*.xls files are located in server 2003 and workstations are using xp sp2,3
Bookmarks