Average plus minus standard deviation excel in one well

Please, help me to find commender in excel 2007 to add same as my uplod picture: Average plus minus standard deviation excel in one well
+.jpg

Write number (5) and then Insert -> Symbol and find +- then Insert, close and continue typing

This solution dont help me dear zbor, because for me very good find command in excel, because I have may data

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and paste where you want and edit only numbers