Error 800a9cf1

MalikSad

New Member
Joined
Aug 23, 2015
Messages
1
Hi all, I try to create a treeview in Excel 2010 but I get the following message: "Could not complete the operation due to error 800a9cf1". I don't understand why excel 2010 displays this message when I have created forms with treeview which functioned normally. Thanks for your help Malik Sad
 

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