Take a look at Debra Dalgleish's site:
http://contextures.com/xlfaqMac.html#NoMacros

Eric wrote:

I have created a macro for excel once, but I delete them already, whenever I
open the excel file, it must pop up the message for opening or closing the
macro.
Does anyone have any suggestions on how to disable this macro pop up?
Thanks in advance for any suggestions
Eric

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Dave Peterson